Common law

In the law, a seal affixed to a contract or other legal instrument has had special legal significance at various times in the jurisdictions that recognise it. In the courts of common law jurisdictions, a contract which was sealed ("made under seal") was treated differently from other written contracts (which were "made under hand"), although this practice gradually fell out of favour in most of these jurisdictions in the 19th and early 20th century. The legal term seal arises from the wax seal used throughout history for authentication (among other purposes).

Originally, only a wax seal was accepted as a seal by the courts, but by the 19th century many jurisdictions had relaxed the definition to include an impression in the paper on which the instrument was printed, an embossed paper wafer affixed to an instrument, a scroll made with a pen, or the printed words "Seal" or "L.S." (standing for the Latin term locus sigilli meaning "place of the seal").

Consideration is a concept of English common law and is a necessity for simple contracts but not for special contracts (contracts by deed). The concept has been adopted by other common law jurisdictions. It is commonly referred to as one of the six or seven elements of a contract.

A legal remedy, also referred to as judicial relief or a judicial remedy, is the means with which a court of law, usually in the exercise of civil law jurisdiction, enforces a right, imposes a penalty, or makes another court order to impose its will in order to compensate for the harm of a wrongful act inflicted upon an individual.

In common law jurisdictions and mixed civil-common law jurisdictions, the law of remedies distinguishes between a legal remedy (e.g. a specific amount of monetary damages) and an equitable remedy (e.g. injunctive relief or specific performance). Another type of remedy available in these systems is declaratory relief, where a court determines the rights of the parties to action without awarding damages or ordering equitable relief. The type of legal remedies to be applied in specific cases depend on the nature of the wrongful act and its liability. In international human rights law, there is a right to an effective remedy.

Equitable remedies are judicial remedies developed by courts of equity from about the time of Henry VIII to provide more flexible responses to changing social conditions than was possible in precedent-based common law.

Equitable remedies were granted by the Court of Chancery in England, and remain available today in most common law jurisdictions. In many jurisdictions, legal and equitable remedies have been merged and a single court can issue either, or both, remedies. Despite widespread judicial merger, the distinction between equitable and legal remedies remains relevant in a number of significant instances. Notably, the United States Constitution's Seventh Amendment preserves the right to a jury trial in civil cases over $20 to cases "at common law".

Private law is the part of a legal system that governs interactions between individual persons. It is distinguished from public law, which deals with relationships between both natural and artificial persons (i.e., organizations) and the state, including regulatory statutes, penal law and other law that affects the public order. In general terms, private law involves interactions between private individuals, whereas public law involves interrelations between the state and the general population. In legal systems of the civil law tradition, it is that part of the jus commune that involves relationships between individuals, such as the law of contracts and torts (as it is called in the common law tradition), and the law of obligations (as it is called in the civil law tradition).

Procedural law, adjective law, in some jurisdictions referred to as remedial law, or rules of court, comprises the rules by which a court hears and determines what happens in civil, lawsuit, criminal or administrative proceedings. The rules are designed to ensure a fair and consistent application of due process (in the U.S.) or fundamental justice (in other common law countries) to all cases that come before a court.

Substantive law, which refers to the actual claim and defense whose validity is tested through the procedures of procedural law, is different from procedural law. In the context of procedural law, procedural rights may also refer not exhaustively to rights to information, access to justice, and right to counsel, rights to public participation, and right to confront accusers, as well as the basic presumption of innocence (meaning the prosecution regularly must meet the burden of proof, although different jurisdictions have various exceptions), with those rights encompassing general civil and political rights. In environmental law, these procedural rights have been reflected within the UNECE Convention on "Access to Information, Public Participation in Decision-making and Access to Justice in Environmental Matters" known as the Aarhus Convention (1998).

Civil law is a major "branch of the law", in common law legal systems such as those in England and Wales and in the United States, where it stands in contrast to criminal law. Private law, which relates to civil wrongs and quasi-contracts, is part of civil law, as is contract law and law of property (excluding property-related crimes, such as theft or vandalism). Civil law may, like criminal law, be divided into substantive law and procedural law. The rights and duties of persons (natural persons and legal persons) amongst themselves is the primary concern of civil law. The common law is today as fertile a source for theoretical inquiry as it has ever been. Around the English-speaking world, many scholars of law, philosophy, politics, and history study the theoretical foundations and applications of the common law. When used in the context of a common law legal system, the term civil law means that branch of the law not including criminal law.

The common law system, which originated in medieval England, is often contrasted with the civil law legal system originating in France and Italy. Whereas the civil law takes the form of legal codes such as the Napoleonic Code, the common law comes from uncodified case law that arises as a result of judicial decisions, recognising prior court decisions as legally binding precedent.

Manslaughter is a term in common law for homicide considered less culpable than murder. The distinction between murder and manslaughter is sometimes said to have first been made by the ancient Athenian lawmaker Draco in the 7th century BC.

The definition of manslaughter differs among legal jurisdictions.

A hung jury, also called a deadlocked jury, is a judicial jury that cannot agree upon a verdict after extended deliberation and is unable to reach the required unanimity or supermajority. A hung jury may result in the case being tried again.

This situation can occur only in common law legal systems. Civil law systems either do not use juries at all or provide that the defendant is immediately acquitted if the majority or supermajority required for conviction is not reached during a singular, solemn vote.

Grand juries in the United States are groups of citizens empowered by United States federal or state law to conduct legal proceedings, chiefly investigating potential criminal conduct and determining whether criminal charges should be brought.

Like the jury system as a whole, grand juries originated in England and spread throughout the colonies of the British Empire as part of the English common law system. Today, the United States is one of only two jurisdictions, along with Liberia, that continues to use the grand jury to screen criminal indictments. Japan also uses the system similar to civil grand juries used by some U.S. states to investigate corruption and other more systemic issues.