In jurisprudence, double jeopardy is a procedural defence that prevents an accused person from being tried again on the same charges following an acquittal or conviction and in rare cases prosecutorial and/or judge misconduct in the same jurisdiction. Double jeopardy is a common concept in criminal law - in civil law, a similar concept is that of res judicata. The double jeopardy protection in criminal prosecutions only bars an identical prosecution for the same offense, however, a different offense may be charged on identical evidence at a second trial. Res judicata protection is stronger - it precludes any causes of action or claims that arise from a previously litigated subject matter.
The insanity defense, also known as the mental disorder defense, is an affirmative defense by excuse in a criminal case, arguing that the defendant is not responsible for their actions due to a psychiatric disease at the time of the criminal act. This is contrasted with an excuse of provocation, in which the defendant is responsible, but the responsibility is lessened due to a temporary mental state. It is also contrasted with the justification of self defense or with the mitigation of imperfect self-defense. The insanity defense is also contrasted with a finding that a defendant cannot stand trial in a criminal case because a mental disease prevents them from effectively assisting counsel, from a civil finding in trusts and estates where a will is nullified because it was made when a mental disorder prevented a testator from recognizing the natural objects of their bounty, and from involuntary civil commitment to a mental institution, when anyone is found to be gravely disabled or to be a danger to themself or to others.
A brocard is a legal maxim in Latin that is, in a strict sense, derived from traditional legal authorities, even from ancient Rome. According to the dictionaries, the word is a variant of the Latinized name of Burchard of Worms, Bishop of Worms, Germany, who compiled 20 volumes of Ecclesiastical Rules, although some sources disagree.
Nulla poena sine lege is a legal formula which, in its narrow interpretation, states that one can only be punished for doing something if a penalty for this behavior is fixed in criminal law. Variant nullum crimen sine lege establishes that conduct is not criminal if not found among the behavior/cirumstance combinations of a statute. The other interpretations of the formula include the rules prohibiting retroactive criminalization and prescribing laws to be strictly construed.
In an extradition, one jurisdiction delivers a person accused or convicted of committing a crime in another jurisdiction, over to the other's law enforcement. It is a cooperative law enforcement procedure between the two jurisdictions and depends on the arrangements made between them. In addition to legal aspects of the process, extradition also involves the physical transfer of custody of the person being extradited to the legal authority of the requesting jurisdiction.
An ex post facto law is a law that retroactively changes the legal consequences of actions that were committed, or relationships that existed, before the enactment of the law. In criminal law, it may criminalize actions that were legal when committed; it may aggravate a crime by bringing it into a more severe category than it was in when it was committed; it may change the punishment prescribed for a crime, as by adding new penalties or extending sentences; it may extend the statute of limitations; or it may alter the rules of evidence in order to make conviction for a crime likelier than it would have been when the deed was committed.
The presumption of innocence is a legal principle that every person accused of any crime is considered innocent until proven guilty. Under the presumption of innocence, the legal burden of proof is thus on the prosecution, which must present compelling evidence to the trier of fact. If the prosecution does not prove the charges true, then the person is acquitted of the charges. The prosecution must in most cases prove that the accused is guilty beyond a reasonable doubt. If reasonable doubt remains, the accused must be acquitted. The opposite system is a presumption of guilt.
Legality, in respect of an act, agreement, or contract is the state of being consistent with the law or of being lawful or unlawful in a given jurisdiction, and the construct of power.
Non bis in idem which translates literally from Latin as 'not twice in the same [thing]', is a legal doctrine to the effect that no legal action can be instituted twice for the same cause of action. It is a legal concept originating in Roman civil law, but it is essentially the equivalent of the double jeopardy doctrine found in common law jurisdictions, and similar peremptory plea in some modern civil law countries.
Section 11 of the Canadian Charter of Rights and Freedoms is the section of the Canadian Constitution that protects a person's legal rights in criminal and penal matters. There are nine enumerated rights protected in section 11.
In criminal law, strict liability is liability for which mens rea does not have to be proven in relation to one or more elements comprising the actus reus although intention, recklessness or knowledge may be required in relation to other elements of the offense. The liability is said to be strict because defendants could be convicted even though they were genuinely ignorant of one or more factors that made their acts or omissions criminal. The defendants may therefore not be culpable in any real way, i.e. there is not even criminal negligence, the least blameworthy level of mens rea.
Sparf v. United States, 156 U.S. 51 (1895), or Sparf and Hansen v. United States, was a United States Supreme Court case testing the admissibility of confessions by multiple defendants accused of the same crime, and the responsibility of juries.
Between 1941 and 1945, Nazi Germany perpetrated the Holocaust: a large-scale genocidal campaign in which approximately six million European Jews were systematically murdered throughout German-occupied Europe. Since World War II, several countries have criminalised Holocaust denial—the assertion by antisemites that the genocide was a myth, fabrication or exaggeration. Currently, 17 European countries, along with Israel and Canada, have laws in place that cover Holocaust denial as a punishable offence. Many countries also have broader laws that criminalise genocide denial, including that of the Holocaust. Among the countries that have banned Holocaust denial, Russia, Austria, Germany, Hungary, Poland, and Romania have also banned Nazi symbols. Any expression of genocide justification is also a criminal offence in several countries, as is any attempt to portray Nazism in a positive light.
Social dangerousness is a category of anti-social behaviour on the basis of detectors of dangerousness that enable the judicial authorities to justify the need for a particular control by the police authorities.
Criminal law is the body of law that relates to crime. It prescribes conduct perceived as threatening, harmful, or otherwise endangering to the property, health, safety, and welfare of people inclusive of one's self. Most criminal law is established by statute, which is to say that the laws are enacted by a legislature. Criminal law includes the punishment and rehabilitation of people who violate such laws.
Common law offences are crimes under English criminal law, the related criminal law of some Commonwealth countries, and under some U.S. state laws. They are offences under the common law, developed entirely by the law courts, having no specific basis in statute.
Criminalization of consensual BDSM practices is usually not with explicit reference to BDSM, but results from the fact that such behavior as spanking or cuffing someone could be considered a breach of personal rights, which in principle constitutes a criminal offense. In Germany, Netherlands, Japan and Scandinavia, such behavior is legal in principle. In Austria the legal status is not clear, while in Switzerland some BDSM practices can be considered criminal.
French criminal law is "the set of legal rules that govern the State's response to offenses and offenders". It is one of the branches of the juridical system of the French Republic. The field of criminal law is defined as a sector of French law, and is a combination of public and private law, insofar as it punishes private behavior on behalf of society as a whole. Its function is to define, categorize, prevent, and punish criminal offenses committed by a person, whether a natural person or a legal person. In this sense it is of a punitive nature, as opposed to civil law in France, which settles disputes between individuals, or administrative law which deals with issues between individuals and government.
The principle of legality in French criminal law holds that no one may be convicted of a criminal offense unless a previously published legal text sets out in clear and precise wording out the constituent elements of the offense and the penalty which applies to it. (Latin:Nullum crimen, nulla pœna sine lege, in other words, "no crime, no penalty, without a law").
The principle of legality in criminal law was developed in the eighteenth century by the Italian criminal lawyer Cesare Beccaria and holds that no one can be convicted of a crime without a previously published legal text which clearly describes the crime. This principle is accepted and codified in modern democratic states as a basic requirement of the rule of law. It has been described as "one of the most 'widely held value-judgement[s] in the entire history of human thought ' ".
