Philosophy of law is a branch of philosophy that examines the nature of law and law's relationship to other systems of norms, especially ethics and political philosophy. It asks questions like "What is law?", "What are the criteria for legal validity?", and "What is the relationship between law and morality?" Philosophy of law and jurisprudence are often used interchangeably, though jurisprudence sometimes encompasses forms of reasoning that fit into economics or sociology.
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 Nuremberg principles are a set of guidelines for determining what constitutes a war crime. The document was created by the International Law Commission of the United Nations to codify the legal principles underlying the Nuremberg Trials of Nazi party members following World War II.
Legal positivism is a school of thought of philosophy of law and jurisprudence which holds that law is constructed from social facts, without regards to the merits of such law. It was developed largely by legal philosophers during the 18th and 19th centuries, such as Jeremy Bentham and John Austin. While Bentham and Austin developed legal positivist theory, empiricism provided the theoretical basis for such developments to occur. Some of the most prominent legal positivist writers of the 20th century have been Hans Kelsen, H. L. A. Hart, and Joseph Raz.
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.
Landmark court decisions, in present-day common law legal systems, establish precedents that determine a significant new legal principle or concept, or otherwise substantially affect the interpretation of existing law. "Leading case" is commonly used in the United Kingdom and other Commonwealth jurisdictions instead of "landmark case", as used in the United States.
A war of aggression, sometimes also war of conquest, is a military conflict waged without the justification of self-defense, usually for territorial gain and subjugation, in contrast with the concept of a just war.
Hans Kelsen was an Austrian jurist, legal philosopher and political philosopher. He was the principal architect of the 1920 Austrian Constitution, which with amendments is still in operation. Due to the rise of totalitarianism in Austria, Kelsen left for Germany in 1930 but was forced out of his university post after the Nazi seizure of power in 1933 because of his Jewish ancestry. That year he left for Geneva and in 1940 he moved to the United States. In 1934, Roscoe Pound lauded Kelsen as "undoubtedly the leading jurist of the time". While in Vienna, Kelsen met Sigmund Freud and his circle, and wrote on social psychology and sociology.
Pure Theory of Law is a book by jurist and legal theorist Hans Kelsen, first published in German in 1934 as Reine Rechtslehre, and in 1960 in a much revised and expanded edition. The latter was translated into English in 1967 as Pure Theory of Law. The title is the name of his general theory of law, Reine Rechtslehre.
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.
Law is a set of rules that are created and are enforceable by social or governmental institutions to regulate behavior, with its precise definition a matter of longstanding debate. It has been variously described as a science and as the art of justice. State-enforced laws can be made by a group legislature or by a single legislator, resulting in statutes; by the executive through decrees and regulations; or established by judges through precedent, usually in common law jurisdictions. Private individuals may create legally binding contracts, including arbitration agreements that adopt alternative ways of resolving disputes to standard court litigation. The creation of laws themselves may be influenced by a constitution, written or tacit, and the rights encoded therein. The law shapes politics, economics, history and society in various ways and also serves as a mediator of relations between people.
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.
"Everything which is not forbidden is allowed" is a legal maxim. It is the concept that any action can be taken unless there is a law against it. It is also known in some situations as the "general power of competence" whereby the body or person being regulated is acknowledged to have competent judgement of their scope of action.
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.
A legal norm is a binding rule or principle, or norm, that organisations of sovereign power promulgate and enforce in order to regulate social relations. Legal norms determine the rights and duties of individuals who are the subjects of legal relations within the governing jurisdiction at a given point in time. Competent state authorities issue and publish basic aspects of legal norms through a collection of laws that individuals under that government must abide by, which is further guaranteed by state coercion. There are two categories of legal norms: normativity, which regulates the conduct of people, and generality, which is binding on an indefinite number of people and cases. Diplomatic and legislative immunity refers to instances where legal norms are constructed to be targeted towards a minority and are specifically only binding on them, such as soldiers and public officials.
Nulla poena sine culpa or the guilt principle is a legal principle requiring that one cannot be punished for something that they are not guilty of. It is recognized as a human right by the Court of Justice of the European Union and all Council of Europe member states. Under this principle, a person can not be punished if he or she is not guilty. Cases of force majeure or necessity are exempted from criminal responsibility. Furthermore, it establishes that no one can be liable for the crimes committed by another person.
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.
