Exculpatory evidence is

evidence Evidence for a proposition is what supports the proposition. It is usually understood as an indication that the proposition is truth, true. The exact definition and role of evidence vary across different fields. In epistemology, evidence is what J ...

favorable to the

defendant In court proceedings, a defendant is a person or object who is the party either accused of committing a crime in criminal prosecution or against whom some type of civil relief is being sought in a civil case. Terminology varies from one juris ...

in a

criminal trial Criminal procedure is the adjudication process of the criminal law. While criminal procedure differs dramatically by jurisdiction, the process generally begins with a formal criminal charge with the person on trial either being free on bail or ...

that exonerates or tends to exonerate the defendant of guilt. It is the opposite of inculpatory evidence, which tends to present guilt. In many countries, including the

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

police The police are Law enforcement organization, a constituted body of Law enforcement officer, people empowered by a State (polity), state with the aim of Law enforcement, enforcing the law and protecting the Public order policing, public order ...

and

prosecutors A prosecutor is a legal representative of the prosecution in states with either the adversarial system, which is adopted in common law, or inquisitorial system, which is adopted in Civil law (legal system), civil law. The prosecution is the ...

are required to disclose to the defendant exculpatory evidence they possess before the

enters a plea (guilty or not guilty). In some countries such as Germany, the prosecutor has to actively search for both exculpatory and inculpatory circumstances and evidence before filing of action. Per the '' Brady v. Maryland'' decision, prosecutors in the United States have a duty to disclose exculpatory evidence even if not requested to do so. While the prosecution is not required to search for exculpatory evidence and must disclose only the evidence in its possession, custody, or control, the prosecution's duty is to disclose all information known to any member of its team, e.g., police, investigators, crime labs, et cetera. In ''Brady v. Maryland'', the

U.S. Supreme Court The Supreme Court of the United States (SCOTUS) is the highest court in the federal judiciary of the United States. It has ultimate appellate jurisdiction over all U.S. federal court cases, and over state court cases that turn on question ...

held that such a requirement follows from constitutional

due process Due process of law is application by the state of all legal rules and principles pertaining to a case so all legal rights that are owed to a person are respected. Due process balances the power of law of the land and protects the individual p ...

and is consistent with the prosecutor's duty to seek justice. The ''Brady'' doctrine is a

pretrial discovery Discovery, in the law of common law jurisdictions, is a phase of pretrial procedure in a lawsuit in which each party, through the law of civil procedure, can obtain evidence from other parties. This is by means of methods of discovery such as ...

rule that was established by the United States Supreme Court in ''Brady v. Maryland'' (1963). The rule requires that the prosecution must turn over all exculpatory evidence to the

in a

criminal case Criminal procedure is the adjudication process of the criminal law. While criminal procedure differs dramatically by jurisdiction, the process generally begins with a formal criminal charge with the person on trial either being free on bail ...

. Exculpatory

is evidence that might exonerate the defendant.

Illustration

A victim is

murder Murder is the unlawful killing of another human without justification (jurisprudence), justification or valid excuse (legal), excuse committed with the necessary Intention (criminal law), intention as defined by the law in a specific jurisd ...

ed by stabbing and a

suspect In law enforcement jargon, a suspect is a known person accused or suspected of committing a crime. Police and reporters in the United States often use the word suspect as a jargon when referring to the perpetrator of the offense (perp in dated U. ...

is arrested for the murder. Evidence includes a knife covered with blood found near the victim and the accused found covered in blood at the murder scene. During the investigation, the police interview a witness claiming to have seen the stabbing. The witness makes a statement to the police that another unidentified person committed the crime, not the accused. The witness's statement is exculpatory evidence as it introduces reasonable doubt as to the guilt of the accused. The police either do not believe the witness's account or else find the witness unreliable and choose not to follow up on the lead. The prosecutor is obliged to inform the accused and their attorney of the witness's statement even though the police doubt the witness's version of events. Failure to do so would provide grounds for a motion to dismiss the charges or an appeal of a subsequent guilty verdict.

References

{{Miscarriage of Justice Criminal law Evidence

Illustration

See also

References