Patrick Pogan
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There have been many conflicts during
Critical Mass In nuclear engineering, a critical mass is the smallest amount of fissile material needed for a sustained nuclear chain reaction. The critical mass of a fissionable material depends upon its nuclear properties (specifically, its nuclear fissi ...
events since the founding of the worldwide bicycling
advocacy Advocacy is an Action (philosophy), activity by an individual or advocacy group, group that aims to influence decision making, decisions within political, economic, and social institutions. Advocacy includes activities and publications to infl ...
event in 1992. The conflicts have resulted in injuries, property damage, and arrests, and both bicyclists and motorized vehicle drivers have been victims. Critics say that Critical Mass, held primarily in large metropolitan cities, is a deliberate attempt to obstruct automotive
traffic Traffic comprises pedestrians, vehicles, ridden or herded animals, trains, and other conveyances that use public ways (roads) for travel and transportation. Traffic laws govern and regulate traffic, while rules of the road include traffic ...
and disrupt normal
city A city is a human settlement of notable size.Goodall, B. (1987) ''The Penguin Dictionary of Human Geography''. London: Penguin.Kuper, A. and Kuper, J., eds (1996) ''The Social Science Encyclopedia''. 2nd edition. London: Routledge. It can be def ...
functions, when individuals taking part refuse to obey
traffic laws Traffic comprises pedestrians, vehicles, ridden or herded animals, trains, and other conveyances that use public ways (roads) for travel and transportation. Traffic laws govern and regulate traffic, while rules of the road include traffic l ...
, while participants variously consider it a celebration of cycling, of cyclists' rights, and a practical re-imagining of urban space.


Berkeley, California, US

On May 11, 2007, an incident occurred in
Berkeley, California Berkeley ( ) is a city on the eastern shore of San Francisco Bay in northern Alameda County, California, United States. It is named after the 18th-century Irish bishop and philosopher George Berkeley. It borders the cities of Oakland and Emer ...
, when an elderly motorist stopped at an
intersection In mathematics, the intersection of two or more objects is another object consisting of everything that is contained in all of the objects simultaneously. For example, in Euclidean geometry, when two lines in a plane are not parallel, their i ...
with dozens of
bicycle A bicycle, also called a pedal cycle, bike or cycle, is a human-powered or motor-powered assisted, pedal-driven, single-track vehicle, having two wheels attached to a frame, one behind the other. A is called a cyclist, or bicyclist. Bic ...
s crossing.
Activists Activism (or Advocacy) consists of efforts to promote, impede, direct or intervene in social, political, economic or environmental reform with the desire to make changes in society toward a perceived greater good. Forms of activism range fro ...
claim that the driver shouted, while bicyclists were in the intersection, "I'm sick of you people!" Police have not determined who had the
right-of-way Right of way is the legal right, established by grant from a landowner or long usage (i.e. by prescription), to pass along a specific route through property belonging to another. A similar ''right of access'' also exists on land held by a gov ...
. The driver attempted to drive through the intersection. The motorist and his wife, two witnesses, and the police all claimed that the cyclists threw their bicycles under the vehicle. This was disputed by other witnesses. Critical Mass participants then rocked the vehicle, pounded the hood, and broke the windshield while verbally abusing the elderly couple. Approximately $3,000 worth of damage was done to the bicycles. Berkeley police did not make any arrests in the incident.


Buffalo, New York, US

On May 30, 2003, in
Buffalo, New York Buffalo is the second-largest city in the U.S. state of New York (behind only New York City) and the seat of Erie County. It is at the eastern end of Lake Erie, at the head of the Niagara River, and is across the Canadian border from South ...
, during an incident known locally as "Critical Massacre," police stopped two cyclists for "failure to yield to an
emergency vehicle An emergency vehicle is a vehicle used by emergency services. Emergency vehicles typically have specialized emergency lighting and vehicle equipment that allow emergency services to reach calls for service in a timely manner, transport equipment a ...
." Several people were allegedly attacked by police. Nine cyclists were arrested and three were later convicted, including a journalist.


Chicago, Illinois, US

Chicago Police Department The Chicago Police Department (CPD) is the municipal law enforcement agency of the U.S. city of Chicago, Illinois, under the jurisdiction of the City Council. It is the second-largest municipal police department in the United States, behind t ...
officers are often seen riding with Critical Mass participants, and squad cars block intersections to provide safe passage to Critical Mass cyclists. However, on August 31, 2007, seven riders were arrested on charges of obstructing traffic and disobeying police, and were held overnight. According to some of those arrested, they were released late at night or early in the morning. On multiple occasions, Critical Mass participants attempted to ride on
Lake Shore Drive Lake Shore Drive (officially Jean Baptiste Pointe du Sable Lake Shore Drive, and called DuSable Lake Shore Drive, The Outer Drive, The Drive, or LSD) is a multilevel expressway that runs alongside the shoreline of Lake Michigan, and adjacent to ...
, a road off limits to cyclists. Police prevented participants riding on Lake Shore Drive, by blocking entrance ramps with squad cars when Critical Mass riders approached the road.


Honolulu, Hawaii, US

At dusk on March 28, 2008, in
Honolulu, Hawaii Honolulu (; ) is the capital and largest city of the U.S. state of Hawaii, which is in the Pacific Ocean. It is an unincorporated county seat of the consolidated City and County of Honolulu, situated along the southeast coast of the island o ...
, police collided with a young woman on a bicycle while trying to stop another bicyclist for traffic infractions. The young woman fell and hit her head on the ground, sustaining injuries requiring hospitalization. While no arrests were made, the police did issue
citations A citation is a reference to a source. More precisely, a citation is an abbreviated alphanumeric expression embedded in the body of an intellectual work that denotes an entry in the bibliographic references section of the work for the purpose of ...
and confiscated bicycles.


Houston, Texas, US

Due to the gradual increase of cyclists participating in Critical Mass, as well as complaints from motorists and concerns for safety,
Houston Police Department The Houston Police Department (HPD) is the primary law enforcement agency serving the City of Houston, Texas, United States and some surrounding areas. With approximately 5,300 officers and 1,200 civilian support personnel it is the fifth-largest ...
officers helped direct the October 2013 Critical Mass ride in
Houston, Texas Houston (; ) is the most populous city in Texas, the most populous city in the Southern United States, the fourth-most populous city in the United States, and the sixth-most populous city in North America, with a population of 2,304,580 in ...
by controlling intersections on the bike route. In January 2014, after two months of providing free security and safe passage through heavy intersections, the Houston Police Department began considering options to charge the group for providing security for the event, citing similarities to providing security for funeral processions through the
city A city is a human settlement of notable size.Goodall, B. (1987) ''The Penguin Dictionary of Human Geography''. London: Penguin.Kuper, A. and Kuper, J., eds (1996) ''The Social Science Encyclopedia''. 2nd edition. London: Routledge. It can be def ...
limits. Some Critical Mass riders have spoken out in protest of paying a fee to utilize extra security and escorting through busy intersections, while many others support paying fees for extra security to keep the ride safe, which has led to increased discussions between the
city A city is a human settlement of notable size.Goodall, B. (1987) ''The Penguin Dictionary of Human Geography''. London: Penguin.Kuper, A. and Kuper, J., eds (1996) ''The Social Science Encyclopedia''. 2nd edition. London: Routledge. It can be def ...
and group for additional alternatives to the building conflicts.


London, United Kingdom

In
London London is the capital and largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary down to the North Sea, and has been a majo ...
in September 2005, a few weeks after the 7 July 2005 bombings, Metropolitan Police required the organisers to provide a route six days before the event and placed strict restrictions on riders, under threat of arrest. The threat was retracted when politicians and cyclist groups objected. In October 2005, the ride had close to 1,200 participants, significantly more than usual. A long stop in
Parliament Square Parliament Square is a square at the northwest end of the Palace of Westminster in the City of Westminster in central London. Laid out in the 19th century, it features a large open green area in the centre with trees to its west, and it contai ...
, part of the government's exclusion area in the
Serious Organised Crime and Police Act 2005 The Serious Organized Crime and Police Act 2005 (c.15) (often abbreviated to SOCPA or SOCAP) is an Act of the Parliament of the United Kingdom aimed primarily at creating the Serious Organised Crime Agency. It also significantly extended and si ...
, led to a slow and cumbersome ride. One participant sought a declaration from the
High Court of England and Wales The High Court of Justice in London, known properly as His Majesty's High Court of Justice in England, together with the Court of Appeal and the Crown Court, are the Senior Courts of England and Wales. Its name is abbreviated as EWHC (England ...
that police need not be notified about the rides, in a "friendly action" in which neither side sought
damages At common law, damages are a remedy in the form of a monetary award to be paid to a claimant as compensation for loss or injury. To warrant the award, the claimant must show that a breach of duty has caused foreseeable loss. To be recognised at ...
. The High Court agreed, exempting Critical Mass from notification under Section 11 of the
Public Order Act 1986 The Public Order Act 1986 (c 64) is an Act of the Parliament of the United Kingdom. It creates a number of public order offences. They replace similar common law offences and parts of the Public Order Act 1936. It implements recommendations
. The ruling was reversed on appeal. In 2008,
Friends of the Earth Friends of the Earth International (FoEI) is an international network of environmental organizations in 73 countries. The organization was founded in 1969 in San Francisco by David Brower, Donald Aitken and Gary Soucie after Brower's split with ...
, who supported the legal action, said the case would be appealed to England's highest legal authority, the
House of Lords The House of Lords, also known as the House of Peers, is the Bicameralism, upper house of the Parliament of the United Kingdom. Membership is by Life peer, appointment, Hereditary peer, heredity or Lords Spiritual, official function. Like the ...
, on the grounds that, after 11 years, Critical Mass is "commonly or customarily held." In October 2008, the House of Lords ruled in favour of the Critical Mass participant. During the
2012 Summer Olympics The 2012 Summer Olympics (officially the Games of the XXX Olympiad and also known as London 2012) was an international multi-sport event held from 27 July to 12 August 2012 in London, England, United Kingdom. The first event, the ...
, cyclists were arrested on opening day after police claim they ignored regulations in place during the Olympics.
Jenny Jones Jenny Jones may refer to: People *Jenny Jones (presenter) (born 1946), United States television personality and host of ''The Jenny Jones Show'' *Jenny Jones, Baroness Jones of Moulsecoomb (born 1949), British Green Party politician, member of the ...
of the
Green Party A green party is a formally organized political party based on the principles of green politics, such as social justice, environmentalism and nonviolence. Greens believe that these issues are inherently related to one another as a foundation ...
and the
Greater London Assembly The London Assembly is a 25-member elected body, part of the Greater London Authority, that scrutinises the activities of the Mayor of London and has the power, with a two-thirds super-majority, to amend the Mayor's annual budget and to reject ...
has questioned the police actions, calling them "out of all proportion to common sense" and "tragically unnecessary." A Critical Mass website asked riders to be "peacefully assertive" during the monthly ride, while police claim they asked riders to keep to the south of the
River Thames The River Thames ( ), known alternatively in parts as the The Isis, River Isis, is a river that flows through southern England including London. At , it is the longest river entirely in England and the Longest rivers of the United Kingdom, se ...
. When the riders got close to the
Olympic Park An Olympic Park is a sports campus for hosting the Olympic Games. Typically it contains the Olympic Stadium and the International Broadcast Centre. It may also contain the Olympic Village or some of the other sports venues, such as the aquatics c ...
, police began to cordon off the area and arrest riders. In total, 182 people were arrested, of whom 4 were charged, and 178 were
bail Bail is a set of pre-trial restrictions that are imposed on a suspect to ensure that they will not hamper the judicial process. Bail is the conditional release of a defendant with the promise to appear in court when required. In some countries ...
ed pending further inquiries. The action led to 5 of the 182 people arrested being convicted in court.


Minneapolis, Minnesota, US

On the August 31, 2007, ride in
Minneapolis, Minnesota Minneapolis () is the largest city in Minnesota, United States, and the county seat of Hennepin County. The city is abundant in water, with thirteen lakes, wetlands, the Mississippi River, creeks and waterfalls. Minneapolis has its origins ...
, a confrontation occurred between cyclists and the police. The police presence included
undercover To go "undercover" (that is, to go on an undercover operation) is to avoid detection by the object of one's observation, and especially to disguise one's own identity (or use an assumed identity) for the purposes of gaining the trust of an indi ...
officers, three marked squad cars, a state
patrol A patrol is commonly a group of personnel, such as Law enforcement officer, law enforcement officers, military personnel, or Security guard, security personnel, that are assigned to monitor or secure a specific geographic area. Etymology Fro ...
helicopter, and unmarked vehicles. The ride had been linked with weekend protests of the following year's
Republican National Convention The Republican National Convention (RNC) is a series of presidential nominating conventions held every four years since 1856 by the United States Republican Party. They are administered by the Republican National Committee. The goal of the Repu ...
. After the arrest of a cyclist for "riding in a snake-like manner," cyclists began chanting "Let him go!" and "What's the charge?" The police called for backup, and dozens of police officers responded, using mace and
taser A taser is an electroshock weapon used to incapacitate people, allowing them to be approached and handled in an unresisting and thus safe manner. It is sold by Axon, formerly TASER International. It fires two small barbed darts intended to ...
s. Minneapolis police arrested 19 participants, including three minors. The adults were arrested on suspicion of rioting, a
gross misdemeanor In United States law, a gross misdemeanor is a crime which is more serious than a regular misdemeanor, but is still classified as a minor crime, as opposed to serious crimes. Such crimes may include petty theft, simple assault or driving under ...
.


Minsk, Belarus

On May 27, 2011, in
Minsk Minsk ( be, Мінск ; russian: Минск) is the capital and the largest city of Belarus, located on the Svislach and the now subterranean Niamiha rivers. As the capital, Minsk has a special administrative status in Belarus and is the admi ...
, Belarus, police forces aided by special units transported 13 cyclists to the police station for violation of traffic rules and for not following orders to disband. Detained participants were
fingerprint A fingerprint is an impression left by the friction ridges of a human finger. The recovery of partial fingerprints from a crime scene is an important method of forensic science. Moisture and grease on a finger result in fingerprints on surfac ...
ed and fined, then released. On April 30, 2016, two cyclists were arrested during a Critical Mass action. As of September 2016, one was released and the other is facing trial.


New York City, New York, US

Police in
New York City New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the L ...
have claimed that Critical Mass bicyclists blocking intersections to allow bikes to pass may delay emergency vehicles in the
gridlock Gridlock is a form of traffic congestion where "continuous queues of vehicles block an entire network of intersecting streets, bringing traffic in all directions to a complete standstill". The term originates from a situation possible in a grid ...
.


2004 Republican National Convention

During the US
2004 Republican National Convention The 2004 Republican National Convention took place from August 30 to September 2, 2004 at Madison Square Garden in New York City, New York. The convention is one of a series of historic quadrennial meetings at which the Republican candidates fo ...
, police arrested 250 riders after the ride caused "massive disruptions" in the city. Many court cases resulted regarding the legality of the ride, whether police have the right to arrest cyclists and seize bicycles, and whether the event needs a permit. In December 2004, a federal judge dismissed New York City's
injunction An injunction is a legal and equitable remedy in the form of a special court order that compels a party to do or refrain from specific acts. ("The court of appeals ... has exclusive jurisdiction to enjoin, set aside, suspend (in whole or in pa ...
against Critical Mass as a "political event." On March 23, 2005, the city filed a lawsuit seeking to prevent
Time's Up! Time's Up! Environmental Organization was founded in 1987 to help educate New Yorkers about environmental awareness. One of its main focuses is to promote non-polluting transportation, by advocating bicycling. Time's Up! helped found New York C ...
, a
direct action Direct action originated as a political activist term for economic and political acts in which the actors use their power (e.g. economic or physical) to directly reach certain goals of interest, in contrast to those actions that appeal to oth ...
environmental group The environmental movement (sometimes referred to as the ecology movement), also including conservation and green politics, is a diverse philosophical, social, and political movement for addressing environmental issues. Environmentalists advoc ...
, from promoting or advertising Critical Mass rides. The lawsuit also stated that Time's Up! and the public could not ride or gather at a Critical Mass bike ride, claiming a permit was required.


2008 bicycle rally

During a bicycle rally on July 25, 2008,
NYPD The New York City Police Department (NYPD), officially the City of New York Police Department, established on May 23, 1845, is the primary municipal law enforcement agency within the City of New York, the largest and one of the oldest in ...
patrolman Patrick Pogan pushed rider Christopher Long off his bicycle. In a criminal complaint, Pogan wrote that he had ordered Long to stop because he was weaving in and out of traffic, forcing vehicles to swerve or stop, and generally disrupting the normal flow of traffic. In addition, Pogan wrote that he suffered
lacerations A wound is a rapid onset of injury that involves lacerated or punctured skin (an ''open'' wound), or a contusion (a ''closed'' wound) from blunt force trauma or compression. In pathology, a ''wound'' is an acute injury that damages the epiderm ...
on his arms because Long steered his bike into him and knocked him down, and when he tried to place Long under arrest, Long began flailing, kicking and screaming, "You are pawns in the game!" Long spent the next day in
police custody An arrest is the act of apprehending and taking a person into custody (legal protection or control), usually because the person has been suspected of or observed committing a crime. After being taken into custody, the person can be questi ...
on charges of attempted assault, resisting arrest and
disorderly conduct Disorderly conduct is a crime in most jurisdictions in the United States, the People's Republic of China, and Taiwan. Typically, "disorderly conduct" makes it a crime to be drunk in public, to " disturb the peace", or to loiter in certain are ...
. Within days, members of the rally's sponsoring organization
Time's Up! Time's Up! Environmental Organization was founded in 1987 to help educate New Yorkers about environmental awareness. One of its main focuses is to promote non-polluting transportation, by advocating bicycling. Time's Up! helped found New York C ...
posted a video of the incident on
YouTube YouTube is a global online video platform, online video sharing and social media, social media platform headquartered in San Bruno, California. It was launched on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim. It is owned by ...
. The video went viral and received over 400,000
hits Hits or H.I.T.S. may refer to: Arts, entertainment, and media Music * ''H.I.T.S.'', 1991 album by New Kids on the Block * ''...Hits'' (Phil Collins album), 1998 * ''Hits'' (compilation series), 1984–2006; 2014 - a British compilation album se ...
within five days. Critical Mass activists claimed it supported their claims that the police department has demonstrated a pattern of arresting participants in the rally on false charges. Witnesses also disputed Pogan's account, saying that Long was the one to receive injuries, traffic was stopped for the rally, and that Pogan had simply scanned the group of cyclists to find one he could take down. The
union Union commonly refers to: * Trade union, an organization of workers * Union (set theory), in mathematics, a fundamental operation on sets Union may also refer to: Arts and entertainment Music * Union (band), an American rock group ** ''Un ...
that represents NYPD officers said Pogan was just doing his job to protect the public from a reckless bike rider, and Pogan's father — himself a retired NYPD
detective A detective is an investigator, usually a member of a law enforcement agency. They often collect information to solve crimes by talking to witnesses and informants, collecting physical evidence, or searching records in databases. This leads th ...
— defended him, saying "You gotta do what you gotta do to make an arrest." The
prosecutor A prosecutor is a legal representative of the prosecution in states with either the common law adversarial system or the Civil law (legal system), civil law inquisitorial system. The prosecution is the legal party responsible for presenting the ...
's office dismissed the charges against Long. NYPD placed Pogan, who had spent only three weeks as a police officer, on a desk assignment while the city investigated the incident. On December 16, 2008, Pogan appeared in court and pleaded not guilty to
felony A felony is traditionally considered a crime of high seriousness, whereas a misdemeanor is regarded as less serious. The term "felony" originated from English common law (from the French medieval word "félonie") to describe an offense that resu ...
charges of falsifying business records and filing a false instrument, and
misdemeanor A misdemeanor (American English, spelled misdemeanour elsewhere) is any "lesser" criminal act in some common law legal systems. Misdemeanors are generally punished less severely than more serious felonies, but theoretically more so than adm ...
charges of third-degree
assault An assault is the act of committing physical harm or unwanted physical contact upon a person or, in some specific legal definitions, a threat or attempt to commit such an action. It is both a crime and a tort and, therefore, may result in crim ...
, second-degree
harassment Harassment covers a wide range of behaviors of offensive nature. It is commonly understood as behavior that demeans, humiliates or embarrasses a person, and it is characteristically identified by its unlikelihood in terms of social and moral ...
and making a punishable false written statement. After the
indictment An indictment ( ) is a formal accusation that a legal person, person has committed a crime. In jurisdictions that use the concept of felony, felonies, the most serious criminal offence is a felony; jurisdictions that do not use the felonies concep ...
, the police department suspended Pogan and, two months later, Pogan resigned as the department prepared to fire him. His attorney said that his defense would center on the department's training procedures and claims that events occurring off-camera needed to be taken into account. On July 8, 2009, it was reported that Long, then a
Hoboken, NJ Hoboken ( ; Unami: ') is a city in Hudson County in the U.S. state of New Jersey. As of the 2020 U.S. census, the city's population was 60,417. The Census Bureau's Population Estimates Program calculated that the city's population was 58,690 ...
, resident, was suing the New York Police Department for $1.5 million, alleging that Pogan falsified his arrest report in order to legitimize his assault on Long. During his trial in April 2010, Pogan acknowledged that the video looked "very extreme." He testified that he had anticipated a collision with Long, since the rider lowered his right shoulder as the officer approached. Jurors found Pogan not guilty of harassment and assault and acquitted him of four of the seven counts of which he had been charged. He was found guilty of filing a criminal complaint that contained false statements concerning the cyclist. Pogan received no jail time but, because he is a convicted
felon A felony is traditionally considered a crime of high seriousness, whereas a misdemeanor is regarded as less serious. The term "felony" originated from English common law (from the French medieval word "félonie") to describe an offense that resu ...
, he is not eligible to become a New York City police officer in the future. Long said in an interview that he was pleased with the verdict, in part because it would prevent Pogan from becoming a New York City police officer again.


Oakland, California, US

On September 9, 2022, in
Oakland, California Oakland is the largest city and the county seat of Alameda County, California, United States. A major West Coast of the United States, West Coast port, Oakland is the largest city in the East Bay region of the San Francisco Bay Area, the third ...
, during the monthly East Bay Bike Party two cyclists were struck by a west-bound gray sedan as they were traveling east on Alcatraz Avenue. According to witnesses, a few minutes prior to the collisions a different car had driven in the opposite lane to bypass slow-moving cars and bicyclists. This move forced vehicle traffic to have to slow down even further, causing drivers to become even more impatient. The Critical Mass of cyclists was bleeding into the westbound lane when the gray sedan approached. Witnesses report that the car had its window down, and many participants were yelling at the driver to slow down or stop. Instead, the driver sped up, accelerating directly into the two cyclists and narrowly missing a dozen other cyclists, including children. One witness stated "There was no doubt in my mind he just did it on purpose. He looked mad and was using his car as a weapon." The Oakland Police Department has not apprehended anyone, even after being provided video, eyewitness accounts, and a license plate number. An OPD officer appeared to blame the riders, saying the department received multiple calls from citizens that bicyclists in the area near Alcatraz were creating a hazard causing vehicular traffic.


Porto Alegre, Brazil

On February 25, 2011, an automobile driver deliberately collided with around 20 cyclists that were participating in a Critical Mass event in Rua José do Patrocinio in
Porto Alegre Porto Alegre (, , Brazilian ; ) is the capital and largest city of the Brazilian state of Rio Grande do Sul. Its population of 1,488,252 inhabitants (2020) makes it the List of largest cities in Brazil, twelfth most populous city in the country ...
, southern
Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...
. Out of approximately 150 people that were taking part in the event, dozens of bicycles were damaged, 15 people were injured and eight were transported to the
emergency room An emergency department (ED), also known as an accident and emergency department (A&E), emergency room (ER), emergency ward (EW) or casualty department, is a medical treatment facility specializing in emergency medicine, the acute care of pati ...
. While the driver left the scene of the incident, demonstrators remained on the street, demanding that the driver be found and arrested. The driver was later identified as 47-year-old Ricardo José Neis. After Neis gave his statement to the police, his attorney, Luis Fernando Coimbra Albino, stated that the Neis was acting in self-defense after several cyclists threatened him and his son and assaulted his car. According to witnesses present at the event, Neis was acting violently behind the bicycles and hit the rear wheels of two different cyclists, and any contact from the cyclists on his car was meant as a sign asking him to slow the vehicle down. Witnesses also reported that Neis had two different transversal roads he could have taken to avoid waiting for the cyclists to proceed. On March 1, 2011, Neis attempted to transfer from a hospital to a
psychiatric clinic Psychiatric hospitals, also known as mental health hospitals, behavioral health hospitals, are hospitals or wards specializing in the treatment of severe mental disorders, such as schizophrenia, bipolar disorder, eating disorders, dissociative ...
, but this request was rejected by court officials. He was held in the hospital under police custody, but was later released and
indicted An indictment ( ) is a formal accusation that a person has committed a crime. In jurisdictions that use the concept of felonies, the most serious criminal offence is a felony; jurisdictions that do not use the felonies concept often use that of an ...
under 17 counts of attempted murder. One of the most severely injured cyclists, 23-year-old Ricardo Mattes Ambus, was readmitted to the hospital on March 3, 2011, due to an intracranial haematoma. During the following week, between February 28 and March 6, 2011, many protests in support of Critical Mass Porto Alegre were organized in several major cities in
South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southe ...
and around the world. In response, local cyclists organized the
World Bike Forum The World Bike Forum (WBF), (FMB), is a yearly cycling activism event in which the topics of bicycle urban mobility and the planning of cities made by and for the people are discussed. According to its creators the WBF began as an answer to an a ...
in
Porto Alegre Porto Alegre (, , Brazilian ; ) is the capital and largest city of the Brazilian state of Rio Grande do Sul. Its population of 1,488,252 inhabitants (2020) makes it the List of largest cities in Brazil, twelfth most populous city in the country ...
to raise awareness of violence in traffic against cyclists. The first Forum took place during the anniversary of the incident. On November 24, 2016, Ricardo Neis was sentenced to 12 years and 9 months in jail for attempted murder and aggravated assault.


San Francisco, California, US


July 1997

On the night of July 25, 1997, in
San Francisco San Francisco (; Spanish language, Spanish for "Francis of Assisi, Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the List of Ca ...
, the ride attracted 5,000 participants, which resulted in congested traffic, confrontations with motorists, and arrests. Interest and tension had been growing for several weeks due to increased
rhetoric Rhetoric () is the art of persuasion, which along with grammar and logic (or dialectic), is one of the three ancient arts of discourse. Rhetoric aims to study the techniques writers or speakers utilize to inform, persuade, or motivate parti ...
from then-Mayor Willie Brown regarding cracking down on the event. The local newspapers published a city-approved route after the mayor withdrew his threat to have bicyclists arrested for not obtaining a
parade A parade is a procession of people, usually organized along a street, often in costume, and often accompanied by marching bands, float (parade), floats, or sometimes large balloons. Parades are held for a wide range of reasons, but are usually ce ...
permit. Because of the large turnout, it was difficult if not impossible for cyclists to follow the sanctioned route. Riders instead found themselves engaged in verbal and physical altercations with motorists and police, as well as among themselves. Two officers reported injuries in confrontations with bike riders. Local media reported that "about 250" bicyclists were arrested, most for disrupting traffic, and a few for being drunk in public,
battery Battery most often refers to: * Electric battery, a device that provides electrical power * Battery (crime), a crime involving unlawful physical contact Battery may also refer to: Energy source *Automotive battery, a device to provide power t ...
, and outstanding
warrants Warrant may refer to: * Warrant (law), a form of specific authorization ** Arrest warrant, authorizing the arrest and detention of an individual ** Search warrant, a court order issued that authorizes law enforcement to conduct a search for eviden ...
.


March 2007

On the March 2007 ride in San Francisco, a rider was arrested on felony (later reduced to misdemeanor) charges in San Francisco's Tenderloin neighborhood for denting a
limousine A limousine ( or ), or limo () for short, is a large, chauffeur-driven luxury vehicle with a partition between the driver compartment and the passenger compartment. A very long wheelbase luxury sedan (with more than four doors) driven by a prof ...
using a
bicycle lock A bicycle lock is a security device used to deter bicycle theft, either by simply locking one of the wheels or by fastening the bicycle to a fixed object, e.g., a bike rack. Quick-release levers, as used on some bicycle wheels and seatpost faste ...
. The driver told police he got out of his car to talk to two cyclists who allegedly blocked his path. After exchanging words with one of the cyclists, the driver said he grabbed one of the bicycles and tried to pull it out of the way. He then got back into his limo to go around the riders, but before he could move, he said, another cyclist ran into the side of his car, then punched the hood with a U-shaped lock. The cyclist told police he only hit the limousine after the driver gunned his engine. During the incident, one of the limousine's tires was slashed and the driver's keys were stolen. Towards the end of the ride, near the Japan Center and
Western Addition The Western Addition is a district in San Francisco, California, United States. Location The Western Addition is located between Van Ness Avenue, the Richmond District, the Haight-Ashbury and Lower Haight neighborhoods, and Pacific Heights. ...
neighborhoods, a mother from
Redwood City, California Redwood City is a city on the San Francisco Peninsula in Northern California's Bay Area, approximately south of San Francisco, and northwest of San Jose. Redwood City's history spans its earliest inhabitation by the Ohlone people to being a ...
, traveling with her two young daughters in the vehicle, tried to drive through the mass of riders. A witness claimed to have observed the driver strike a cyclist and flee before cyclists chased and surrounded her vehicle. The driver denied striking a cyclist and alleged that hundreds of cyclists surrounded her minivan while she and her 11- and 13-year-old daughters were inside, banged on her car, scratched the paint, and threw a bicycle through the rear window of the vehicle, causing $5,300 in damages. In April 2007, San Francisco Mayor
Gavin Newsom Gavin Christopher Newsom (born October 10, 1967) is an American politician and businessman who has been the 40th governor of California since 2019. A member of the Democratic Party, he served as the 49th lieutenant governor of California fr ...
requested that Critical Mass riders police themselves. "It does the bicycle-advocacy community no good to have people that are aggressive and dispirit the entire movement," Newsom said. "I would encourage the bicycle
coalition A coalition is a group formed when two or more people or groups temporarily work together to achieve a common goal. The term is most frequently used to denote a formation of power in political or economical spaces. Formation According to ''A Gui ...
to say, 'Look, we don't put up with this, enough is enough.' "


November 2009

In November 2009, Stanley Roberts of
KRON KRON-TV (channel 4) is a television station licensed to San Francisco, California, United States, serving the San Francisco Bay Area as an affiliate of MyNetworkTV. Owned by Nexstar Media Group, KRON-TV maintains studios on Front Street in the c ...
4 News recorded several Critical Mass confrontations between bicyclists and vehicles at Van Ness and O'Farrell Streets. An old Critical Mass website advised riders not to be confrontational and block traffic, but in footage filmed by Roberts, bicyclists engaged in confrontational arguments with motorists and blocked roads to vehicular traffic.


August 2015

In August 2015, KQED posted an article on a Critical Mass confrontation between a bicyclist and a female
Zipcar Zipcar is an American car-sharing company and a subsidiary of Avis Budget Group. Zipcar provides vehicle reservations to its members, billable by the minute, hour or day; members may have to pay a monthly or annual membership fee in addition to ...
driver in the San Francisco Marina District. 39 year old Ian Hespelt was arrested a few days later by the San Francisco Police Department's bicycle patrol at
AT&T Park Oracle Park is a Major League Baseball stadium in the SoMa neighborhood of San Francisco, California. Since 2000, it has been the home of the San Francisco Giants. Previously named Pacific Bell Park, SBC Park, and AT&T Park, the stadium's curren ...
during the
Billy Joel William Martin Joel (born May 9, 1949) is an American singer, pianist and songwriter. Commonly nicknamed the "Piano Man (song), Piano Man" after his album and signature song of the same name, he has led a commercially successful career as a solo ...
concert. Hespelt was charged with four felonies including assault, vandalism, maliciously throwing a substance at a vehicle and false imprisonment. Hespelt was also wanted in Washington state on a felony drug charge warrant.


Seattle, Washington, US


June 2006

Two riders were arrested during the June 2006 ride in
Seattle, Washington Seattle ( ) is a port, seaport city on the West Coast of the United States. It is the county seat, seat of King County, Washington, King County, Washington (state), Washington. With a 2020 population of 737,015, it is the largest city in bo ...
, after a fight with two undercover detectives whom the cyclists confused for
gang A gang is a group or society of associates, friends or members of a family with a defined leadership and internal organization that identifies with or claims control over territory in a community and engages, either individually or collectivel ...
members. Witnesses disputed the claim made by the sheriff's office that the detectives identified themselves. The
King County Sheriff's Office The King County Sheriff's Office (KCSO) is a local police agency in King County, Washington, United States. It is the primary law enforcement agency for all unincorporated areas of King County, as well as 12 cities and two transit agencies which ...
decided not to press felony charges in the case, saying there were too many issues over the circumstances surrounding the
allegation In law, an allegation is a claim of an unproven fact by a party in a pleading, charge, or defense. Until they can be proved, allegations remain merely assertions.
s.


July 2008

On July 25, 2008, Critical Mass prevented a motorist from driving from a curbside
parking space A parking space, parking place or parking spot is a location that is designated for parking, either paved or unpaved. It can be in a parking garage, in a parking lot or on a city street. The space may be delineated by road surface markings. ...
into cyclists in
Seattle Seattle ( ) is a seaport city on the West Coast of the United States. It is the seat of King County, Washington. With a 2020 population of 737,015, it is the largest city in both the state of Washington and the Pacific Northwest regio ...
's Critical Mass on East Aloha. The motorist made statements to Seattle police that he drove away, hitting bicycles and riders (one of them an attorney), and told the press that he "freaked out and overreacted" when bicyclists threatened to tip his vehicle. According to some witnesses, the motorist drove into at least two cyclists and tried to flee. A group of riders caught the vehicle, broke its rear windshield, slashed the tires, and assaulted the motorist when he got out. Damage to the car was estimated at $1,500. The motorist was struck in the back of his head by a bike lock and later hospitalized. Two cyclists were arrested for
vandalism Vandalism is the action involving deliberate destruction of or damage to public or private property. The term includes property damage, such as graffiti and defacement directed towards any property without permission of the owner. The term f ...
to the car. Seattle police did not charge the motorist.


Vilnius, Lithuania

On July 27, 2007, in
Vilnius, Lithuania Vilnius ( , ; see also #Etymology and other names, other names) is the capital and List of cities in Lithuania#Cities, largest city of Lithuania, with a population of 592,389 (according to the state register) or 625,107 (according to the munic ...
, police took five participants into custody, including two minors, for not following orders to disband.


Walnut Creek, California, US

In
Walnut Creek, California Walnut Creek is a city in Contra Costa County, California, United States, located in the East Bay region of the San Francisco Bay Area, about east of the city of Oakland. With a total population of 70,127 per the 2020 census, Walnut Creek ser ...
, on June 20, 2008, a car bumped into the rear wheel of a Critical Mass rider. An argument ensued among the driver and passenger of the car and the cyclist involved, after which the passenger and driver of the car assaulted the cyclist. The police arrived and arrested the passenger and driver of the automobile involved in the assault.


Warsaw, Poland

On June 21, 2002, in
Warsaw, Poland Warsaw ( pl, Warszawa, ), officially the Capital City of Warsaw,, abbreviation: ''m.st. Warszawa'' is the capital and List of cities and towns in Poland, largest city of Poland. The metropolis stands on the Vistula, River Vistula in east-cen ...
, the Critical Mass event was stopped by a cordon of fully armed
riot police Riot police are police who are organized, deployed, trained or equipped to confront crowds, protests or riots. Riot police may be regular police who act in the role of riot police in particular situations or they may be separate units organize ...
on Plac Konstytucji (Constitution Square), who demanded their dispersal and detained some of the participants. Other Critical Mass participants responded with a
sit-in protest A sit-in or sit-down is a form of direct action that involves one or more people occupying an area for a protest, often to promote political, social, or economic change. The protestors gather conspicuously in a space or building, refusing to mo ...
, blocking an important traffic
junction Junction may refer to: Arts and entertainment * ''Junction'' (film), a 2012 American film * Jjunction, a 2002 Indian film * Junction (album), a 1976 album by Andrew Cyrille * Junction (EP), by Basement Jaxx, 2002 * Junction (manga), or ''Hot ...
, and then tried to evade the
blockade A blockade is the act of actively preventing a country or region from receiving or sending out food, supplies, weapons, or communications, and sometimes people, by military force. A blockade differs from an embargo or sanction, which are le ...
by taking different routes to Plac Zamkowy (Castle Square), the Critical Mass rally point. This event was widely reported by the media and, as a result, the Warsaw
municipality A municipality is usually a single administrative division having corporate status and powers of self-government or jurisdiction as granted by national and regional laws to which it is subordinate. The term ''municipality'' may also mean the go ...
decided to legalize future events, rather than escalate the conflict. Beginning in September 2002, Critical Mass events in Warsaw are organized in full cooperation with the police force. Once a year in August, beginning in 2007, a special Critical Mass is organized in cooperation with the city officials to commemorate the
Warsaw Uprising The Warsaw Uprising ( pl, powstanie warszawskie; german: Warschauer Aufstand) was a major World War II operation by the Polish resistance movement in World War II, Polish underground resistance to liberate Warsaw from German occupation. It occ ...
.


Buenos Aires, Argentina

On March 28, 2013, in
Buenos Aires, Argentina Buenos Aires ( or ; ), officially the Autonomous City of Buenos Aires ( es, link=no, Ciudad Autónoma de Buenos Aires), is the capital and primate city of Argentina. The city is located on the western shore of the Río de la Plata, on South ...
, a taxi driver ran over a group of Critical Mass riders, injuring 2 cyclists, before fleeing from the scene.


References

{{Reflist, 30em DIY culture Environmentalism History of cycling Protests Cycling events Crime