Institution type
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.
Why this kind of body exists
These agencies exist because some offences do not respect internal boundaries. Where policing is organised territorially, an offence crossing state or provincial lines belongs to everyone and therefore to no one. A body defined by subject matter rather than territory closes that gap — and is deliberately given a narrow subject list, because a federal body with general policing jurisdiction would displace the territorial forces rather than complete them.
What distinguishes it
- Jurisdiction defined by subject matter rather than by territory
- Typically investigative rather than responsive; rarely the first point of public contact
- Frequently handles offences crossing internal borders or involving national institutions
Typical mandate
- Serious and organised crime, financial crime, corruption, or offences against national institutions, depending on the country
- Coordination between territorial forces where an offence crosses their boundaries
How authority reaches it
Authority is conferred by statute and bounded by it. In the United States, 28 U.S.C. § 533 empowers the Attorney General to appoint officials to detect and prosecute crimes against the United States — federal investigative authority tied to federal offences, not to a general police power. The pattern recurs: the agency can act where the statute reaches, and the statute is the limit.
Commonly confused with
- That such agencies outrank local police. They generally have different jurisdiction rather than superior authority.
- With intelligence services, which in most systems have no policing powers
Where it exists
Present in most federal states and in many unitary ones. The list of offences within its jurisdiction is defined by national law and is not comparable between countries without checking each.
What examines it
Because these agencies investigate rather than patrol, most of what they do is reviewed by prosecutors and courts rather than by a complaints body responding to street encounters. That makes judicial supervision and disclosure obligations the primary accountability mechanism, and it makes the scope of the enabling statute the primary constraint.
Worked examples
Systems this platform has researched. Each example shows how one country actually arranges this — including where it departs from the general pattern.
- United States
- Federal investigative authority rests on statute — 28 U.S.C. § 533 — and sits alongside, not above, thousands of separate state and local agencies. It is the clearest case of subject-matter jurisdiction coexisting with territorial policing rather than superseding it.
- Brazil
- Brazil sets the federal police’s competences in the 1988 Constitution itself rather than leaving them to ordinary statute, which places the boundary between federal and state policing at constitutional level.
- Switzerland
- Switzerland shows the model in a strongly decentralised state, where cantonal forces do the general policing and the federal office holds a defined and comparatively narrow remit.
Where this connects
Roles: Detective / investigator.
Institutions: National police.
Sources
28 U.S. Code § 533 (Investigative and other officials; appointment)
Legal Information Institute, Cornell Law School (reproducing the United States Code) · Legislation · link verified 2026-07-24
Verbatim: the Attorney General may appoint officials '(1) to detect and prosecute crimes against the United States'. The statutory basis for federal investigative authority (the FBI is established under this and related provisions). Supports that federal investigative authority is tied to crimes AGAINST THE UNITED STATES — i.e. federal offences — and preserves the investigative authority assigned by law to other agencies. Does NOT support any claim of general federal jurisdiction over all crime, nor any operational detail.
Competências da Polícia Federal
Polícia Federal — gov.br (Ministério da Justiça e Segurança Pública) · Institutional (self-description) · link verified 2026-07-25
The Polícia Federal's own page, read in full. Supports that the PF is a Union body that exercises, 'com exclusividade, as funções de polícia judiciária da União', carries out 'polícia marítima, aeroportuária e de fronteiras', and works to 'reprimir o tráfico ilícito de entorpecentes e drogas afins, o contrabando e o descaminho' — reproducing Art. 144 §1. Establishes the PF's federal remit (federal crimes, borders, drugs); does not cover the state forces.
National cooperation — fedpol (Federal Office of Police)
Federal Office of Police fedpol (fedpol.admin.ch) · Institutional (self-description) · link verified 2026-07-26
fedpol's own account (official page, obtained by search retrieval; fedpol.admin.ch pages are reorganised behind a content system). Supports that 'Switzerland does not have a national police force', that each canton is responsible for policing its own territory and has its own police law, and that fedpol 'is not a superordinate authority, but works alongside these police forces' — with limited federal functions (federal-jurisdiction investigations, security duties, national coordination). Establishes that policing is primarily cantonal and fedpol does not command the cantonal police. Structural facts only.
Crime Prevention and Criminal Justice
United Nations Office on Drugs and Crime · International organisation · link verified 2026-07-23
Supports the existence of the UN crime prevention and criminal justice programme and its standards-and-norms work across policing, courts, and prisons. Does not support any country-level claim.