Reference

Institutions

Institution types across justice and public safety — what distinguishes each from the adjacent one, and where a familiar name means something materially different.

These are institution types, not named agencies. A type page describes what distinguishes it from the bodies it is routinely confused with, how authority reaches it, what examines it, and — the most useful field for a reader — where the type does and does not exist.

Named institutions are covered under their country, where a jurisdiction and dated official sources are mandatory. Each type below links onward to the country dossiers it has been checked against.

Researched types

Municipal police: A police service established by and accountable to a city or local authority, with jurisdiction over that area.
National police service: A single police organisation with jurisdiction across a whole country, accountable to national government.
Gendarmerie: A police force with military status performing ordinary civilian policing, usually alongside a separate civilian police service.
Federal or national investigative agency: A body with jurisdiction over specified categories of offence across a whole country, rather than general policing of a territory.
Transport police: A police force whose jurisdiction follows a transport network — railways, metros, ports or waterways — rather than a geographic territory.
Prosecution service: The body responsible for deciding whether criminal cases are brought and for presenting them in court.
Correctional service: The body responsible for operating places of detention and, in many systems, for supervising people serving sentences in the community.
State police: A police force established by and accountable to a constituent state of a federation, rather than to the federal government or a municipality.
Provincial police: A police force belonging to a province, in systems where policing is a provincial responsibility — a responsibility a province may discharge by running a force or by buying the service from another order of government.
Prefectural police: Policing administered at the prefectural level within a unitary state, under a single national legal framework rather than under separate sub-national law.
Autonomous-community police: A police force belonging to an autonomous region of a decentralised unitary state, created where the region’s own statute of autonomy provides for one.
Independent police complaints body: An external body, outside the police organisation, that receives complaints about police conduct and in many systems investigates them. Its powers vary enormously — some investigate crime and prosecute it, some are limited to the most serious incidents.
Independent police investigative body: An external body whose statutory job is to investigate suspected CRIMES by police officers. Some also handle conduct complaints; two of the clearest examples handle none at all, and must turn away a report that discloses no offence.
Constitutional court: A body with authority to decide whether law and state action conform to the constitution. In several systems it sits outside the ordinary judiciary and is not its highest court. In others no such body exists, and in one the function is forbidden entirely.
Ombuds and rights institutions: General-mandate bodies — parliamentary ombuds, public defenders of rights, national human-rights institutions — whose remit covers public administration broadly. Police fall inside that remit without these being police bodies.

Summaries pending research

Border and customs authority: Bodies controlling the movement of people and of goods across a border — two distinct legal regimes, frequently exercised at the same location.; The functions exist wherever there is a controlled border. Whether they sit in one body, two bodies, the police, or the armed forces differs by country.
Coast guard: A maritime body whose status ranges from an armed military service to a civilian search-and-rescue or regulatory organisation.; Present in most coastal states in some form. Landlocked states may have an equivalent inland-waterway body or none. The name is one of the clearest cases where the same term denotes materially different institutions.