The use of a gavel goes back to medieval times.It is used by judges because the sound it makes is one of authority to bring order.
Procedural law or adjective law 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 claims and defenses whose validity is tested through the procedures of procedural law, is different from procedural law.
In context of procedural law; procedural rights may also refer not exhaustively to rights to Information, rights to justice, rights to participation which 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).
Parliamentary procedure is the body of rules, ethics, and customs governing meetings and other operations of clubs, organizations, legislative bodies, and other deliberative assemblies. It is part of the common law]citation needed[ originating primarily in the practices of the House of Commons of the Parliament of the United Kingdom, from which it derives its name.
In the United States, parliamentary procedure is also referred to as parliamentary law, parliamentary practice, legislative procedure, or rules of order. In the United Kingdom, Australia, New Zealand, South Africa, and other English-speaking countries it is often called chairmanship, chairing, the law of meetings, procedure at meetings, or the conduct of meetings. At its heart is the rule of the majority with respect for the minority. Its object is to allow deliberation upon questions of interest to the organization and to arrive at the sense or the will of the assembly upon these questions. Self-governing organizations follow parliamentary procedure to debate and reach group decisions—usually by vote—with the least possible friction.
The term crime does not, in modern times, have any simple and universally accepted definition, but one definition is that a crime, also called an offence or a criminal offence, is an act harmful not only to some individual, but also to the community or the state (a public wrong). Such acts are forbidden and punishable by law.