The adversarial system (also adversary system, accusatorial system, or accusatory system) is a legal system used in the
common law
Common law (also known as judicial precedent, judge-made law, or case law) is the body of law primarily developed through judicial decisions rather than statutes. Although common law may incorporate certain statutes, it is largely based on prece ...
countries where two advocates represent their parties' case or position before an impartial person or group of people, usually a
judge
A judge is a person who wiktionary:preside, presides over court proceedings, either alone or as a part of a judicial panel. In an adversarial system, the judge hears all the witnesses and any other Evidence (law), evidence presented by the barris ...
or
jury
A jury is a sworn body of people (jurors) convened to hear evidence, make Question of fact, findings of fact, and render an impartiality, impartial verdict officially submitted to them by a court, or to set a sentence (law), penalty or Judgmen ...
, who attempt to determine the truth and pass judgment accordingly.
It is in contrast to the
inquisitorial system
An inquisitorial system is a legal system in which the court, or a part of the court, is actively involved in investigating the facts of the case. This is distinct from an adversarial system, in which the role of the court is primarily that of an ...
used in some
civil law systems (i.e. those deriving from
Roman law
Roman law is the law, legal system of ancient Rome, including the legal developments spanning over a thousand years of jurisprudence, from the Twelve Tables (), to the (AD 529) ordered by Eastern Roman emperor Justinian I.
Roman law also den ...
or the
Napoleonic code
The Napoleonic Code (), officially the Civil Code of the French (; simply referred to as ), is the French civil code established during the French Consulate in 1804 and still in force in France, although heavily and frequently amended since i ...
) where a judge investigates the case.
The adversarial system is the two-sided structure under which
criminal trial courts operate, putting the prosecution against the defense.
Basic features
Adversarial systems are considered to have three basic features. The first is a neutral decision-maker such as a judge or jury. The second is presentation of evidence in support of each party's case, usually by lawyers. The third is a highly
structured procedure.
The
rules of evidence are developed based upon the system of objections of adversaries and on what basis it may tend to prejudice the
trier of fact
In law, a trier of fact or finder of fact is a person or group who determines disputed issues of fact in a legal proceeding (usually a trial) and how relevant they are to deciding its outcome. To determine a fact is to decide, from the evide ...
which may be the judge or the jury. In a way the rules of evidence can function to give a judge limited inquisitorial powers as the judge may exclude evidence deemed to not be trustworthy, or irrelevant to the legal issue at hand.
Peter Murphy in his ''Practical Guide to Evidence'' recounts an instructive example. A frustrated judge in an English (adversarial) court finally asked a barrister after witnesses had produced conflicting accounts, "Am I never to hear the truth?" "No, my lord, merely the evidence", replied counsel.
Parties
Judge
A judge is a person who wiktionary:preside, presides over court proceedings, either alone or as a part of a judicial panel. In an adversarial system, the judge hears all the witnesses and any other Evidence (law), evidence presented by the barris ...
s in an adversarial system are impartial in ensuring the fair play of
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 ...
, or
fundamental justice. Such judges decide, often when called upon by counsel rather than of their own motion, what
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 ...
is to be admitted when there is a dispute; though in some common law jurisdictions judges play more of a role in deciding what evidence to admit into the record or reject. At worst, abusing
judicial discretion would actually pave the way to a biased decision, rendering obsolete the judicial process in question—
rule of law
The essence of the rule of law is that all people and institutions within a Body politic, political body are subject to the same laws. This concept is sometimes stated simply as "no one is above the law" or "all are equal before the law". Acco ...
being illicitly subordinated by
rule of man under such discriminating circumstances. Lord Devlin in ''The Judge'' said: "It can also be argued that two prejudiced searchers starting from opposite ends of the field will between them be less likely to miss anything than the impartial searcher starting at the middle."
The right to
counsel
A counsel or a counsellor at law is a person who gives advice and deals with various issues, particularly in legal matters. It is a title often used interchangeably with the title of ''lawyer''.
The word ''counsel'' can also mean advice given ...
in criminal trials was initially not accepted in some adversarial systems. It was believed that the facts should speak for themselves, and that lawyers would just blur the matters. As a consequence, it was only in 1836 that England gave suspects of felonies the formal right to have legal counsel (the
Prisoners' Counsel Act 1836), although in practice, English courts routinely allowed defendants to be represented by counsel from the mid-18th century. During the second half of the 18th century, advocates like
Sir William Garrow and
Thomas Erskine, 1st Baron Erskine, helped usher in the adversarial court system used in most common law countries today. In the United States, however, personally retained counsel have had a right to appear in all federal criminal cases since the adoption of the
United States Constitution
The Constitution of the United States is the Supremacy Clause, supreme law of the United States, United States of America. It superseded the Articles of Confederation, the nation's first constitution, on March 4, 1789. Originally includi ...
, and in state cases at least since the end of the
civil war
A civil war is a war between organized groups within the same Sovereign state, state (or country). The aim of one side may be to take control of the country or a region, to achieve independence for a region, or to change government policies.J ...
, although nearly all provided this right in their state constitutions or laws much earlier. Appointment of counsel for indigent defendants was nearly universal in federal felony cases, though it varied considerably in state cases.
It was not until 1963 that the
U.S. Supreme Court declared that legal counsel must be provided at the expense of the state for indigent felony defendants, under the federal Sixth Amendment, in state courts. See ''
Gideon v. Wainwright
''Gideon v. Wainwright'', 372 U.S. 335 (1963), was a List of landmark court decisions in the United States, landmark Supreme Court of the United States, U.S. Supreme Court decision in which the Court ruled that the Sixth Amendment to the United S ...
'', .
Criminal proceedings
In criminal adversarial proceedings, an accused is not compelled to give evidence. Therefore, they may not be questioned by a prosecutor or judge unless they choose to be; however, should they decide to testify, they are subject to
cross-examination
In law, cross-examination is the interrogation of a witness by one's opponent. It is preceded by direct examination (known as examination-in-chief in Law of the Republic of Ireland, Ireland, the Law of the United Kingdom, United Kingdom, Austra ...
and could be found guilty of
perjury
Perjury (also known as forswearing) is the intentional act of swearing a false oath or falsifying an affirmation to tell the truth, whether spoken or in writing, concerning matters material to an official proceeding."Perjury The act or an insta ...
. As the election to maintain an accused person's
right to silence prevents any examination or cross-examination of that person's position, it follows that the decision of counsel as to what evidence will be called is a crucial tactic in any case in the adversarial system and hence it might be said that it is a lawyer's manipulation of the truth. Certainly, it requires the skills of counsel on both sides to be fairly equally pitted and subjected to an impartial judge.
In some adversarial legislative systems, the court is permitted to make
inference
Inferences are steps in logical reasoning, moving from premises to logical consequences; etymologically, the word '' infer'' means to "carry forward". Inference is theoretically traditionally divided into deduction and induction, a distinct ...
s on an accused's failure to face
cross-examination
In law, cross-examination is the interrogation of a witness by one's opponent. It is preceded by direct examination (known as examination-in-chief in Law of the Republic of Ireland, Ireland, the Law of the United Kingdom, United Kingdom, Austra ...
or to answer a particular question. This obviously limits the usefulness of silence as a tactic by the defense. In the United States, the
Fifth Amendment has been interpreted to prohibit a jury from drawing a negative inference based on the defendant's invocation of his or her right not to testify, and the jury must be so instructed if the defendant requests.
By contrast, while
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 ...
s in most civil law systems can be compelled to give statements, these statements are not subject to cross-examinations by the prosecution and are not given under oath. This allows the defendant to explain their side of the case without being subject to cross-examination by a skilled opposition. However, this is mainly because it is not the prosecutor but the judge who questions the defendant. The concept of "cross"-examination is entirely due to adversarial structure of the common law.
Comparison with inquisitorial systems
The name "adversarial system" may be misleading in that it implies it is only within this type of system in which there are opposing prosecution and defense. This is not the case, and both modern adversarial and inquisitorial systems have the powers of the state separated between a prosecutor and the judge and allow the defendant the
right to counsel. Indeed, the
European Convention on Human Rights and Fundamental Freedoms in Article 6 requires these features in the legal systems of its signatory states.
One of the most significant differences between the adversarial system and the inquisitorial system occurs when a criminal defendant admits to the crime. In an adversarial system, there is no more controversy and the case proceeds to sentencing; though in many jurisdictions the defendant must have
allocution of her or his crime; an obviously
false confession will not be accepted even in common law courts. By contrast, in an inquisitorial system, the fact that the defendant has confessed is merely one more fact that is entered into evidence, and a confession by the defendant does not remove the requirement that the prosecution present a full case. This allows for
plea bargain A plea bargain, also known as a plea agreement or plea deal, is a legal arrangement in criminal law where the defendant agrees to plead guilty or no contest to a charge in exchange for concessions from the prosecutor. These concessions can include a ...
ing in adversarial systems in a way that is difficult or impossible in inquisitional system, and many felony cases in the United States are handled without trial through such plea bargains. Plea bargains are becoming more common in 27 civil law countries.
See also
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Adversary evaluation
*
Judicial interpretation
*
Exclusionary rule
*
Parallel thinkingdescribed as a systemic alternative
References
Further reading
*
{{DEFAULTSORT:Adversarial System
Judiciaries
Legal systems