Jurisdiction is the legal term for the legal authority granted to a legal entity to enact justice. In federations like the United States, the concept of jurisdiction applies at multiple levels.
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. As some laws are unwritten and laws can be interpreted broadly, it does not necessarily mean that an action will not be punished simply because a specific rule against it is not codified.
The right of self-defense is the right for people to use reasonable or defensive force, for the purpose of defending one's own life (self-defense) or the lives of others, including, in certain circumstances, the use of deadly force.
An inchoate offense, preliminary crime, inchoate crime or incomplete crime is a crime of preparing for or seeking to commit another crime. The most common example of an inchoate offense is "attempt". "Inchoate offense" has been defined as the following: "Conduct deemed criminal without actual harm being done, provided that the harm that would have occurred is one the law tries to prevent."
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.
Fruit of the poisonous tree is a legal metaphor used to describe evidence that is obtained illegally. The logic of the terminology is that if the source of the evidence or evidence itself is tainted, then anything gained from it is tainted as well.
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.
A castle doctrine, also known as a castle law or a defense of habitation law, is a legal doctrine that designates a person's abode or any legally occupied place as a place in which that person has protections and immunities permitting one, in certain circumstances, to use force to defend oneself against an intruder, free from legal prosecution for the consequences of the force used. The term is most commonly used in the United States, though many other countries invoke comparable principles in their laws.
In law, selective enforcement occurs when government officials exercise discretion, which is the power to choose whether or how to punish a person who has violated the law. The biased use of enforcement discretion, such as that based on racial prejudice or corruption, is usually considered a legal abuse and a threat to the rule of law.
Double criminality, or dual criminality, is a requirement in the extradition law and international prisoner transfers of many countries. It states that a suspect can be extradited from one country to stand trial for breaking a second country's law only if a similar law exists in the extraditing country, and that any crime in any sentencing country must also be a crime in any other country to receive any internationally transferred prisoners.
Superior orders, also known as the Nuremberg defense or just following orders, is a plea in a court of law that a person, whether a member of the military, law enforcement, or the civilian population, should not be considered guilty of committing crimes that were ordered by a superior officer or official.
The French Penal Code of 1791 was a penal code adopted during the French Revolution by the Constituent Assembly, between 25 September and 6 October 1791. It was France's first penal code, and was influenced by the Enlightenment thinking of Montesquieu and Cesare Beccaria.
In common law, the principle of prosecutorial discretion allows public prosecutors a wide latitude to decide whether or not to charge a person for a crime, and which charges to file. A similar principle in continental law countries is called the principle of opportunity.
The South African judiciary has broad powers of judicial review under the Constitution of South Africa. Courts are empowered to pronounce on the legality and constitutionality of exercises of public power, including administrative action, executive action, and the passage of acts of Parliament. Though informed by the common law principles that guided judicial review during the apartheid era, contemporary judicial review is authorised by and grounded in constitutional principles. In the case of administrative action, it is also codified in the Promotion of Administrative Justice Act, 2000.
The Prosecution Ministry is a constitutional body integrated into the Judiciary of Spain, but with full autonomy. It is entrusted with defending the rule of law, the rights of the citizens, and public interest, as well as watching over the independence of the courts of justice.
The Shawcross principle is an idea in the United Kingdom's Westminster system of government, whereby the Attorney-General is to be left to his or her own devices and judgments regarding whether or not to establish criminal proceedings. It relates to political pressure and cabinet government.
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 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 ' ".
The Principle of Legality is an important legal doctrine in Australian public law.
