Mexico
Law enforcement in Mexico
Public security is a shared function of the federation, the states and the municipalities — a federal Guardia Nacional alongside state and municipal police — with the prosecutor directing investigations.
Facts on this page were checked against their sources on .
Public security in Mexico is a shared function "of the Federation, the states and the municipalities" (Article 21). At the federal level the principal force is the Guardia Nacional, created in 2019 and, by a constitutional reform published in the official gazette in September 2024, placed under the Secretariat of National Defence. Alongside it are the 32 state police forces and the municipal police. The investigation of crimes corresponds to the Public Prosecutor (Ministerio Público), with the police acting under its "conduct and command" (Article 21).
The same idea, explained generally
- Why do societies need law enforcement?
Law enforcement exists so that rules apply to everyone rather than to whoever can be compelled. This guide explains the function, the conditions that make it legitimate, and what it cannot do.
- What is the difference between police and law enforcement?
“Police” is one kind of institution. “Law enforcement” is a function that many bodies perform. This guide explains the distinction and why it matters when comparing countries.
Sources
Sources
Political Constitution of the United Mexican States (1917, current text)
Suprema Corte de Justicia de la Nación / official constitutional text · Legislation · 1917-02-05 · link verified 2026-07-27
The Political Constitution of the United Mexican States (1917), confirmed against the Supreme Court's per-article texts and a current-text mirror in two independent passes (the consolidated official PDF at diputados.gob.mx was unreachable). Supports Art. 17 (federal and local laws shall guarantee the independence of the courts); Art. 40 (a representative, democratic, secular and federal Republic of free and sovereign States and Mexico City); Art. 124 (residual powers reserved to the States or Mexico City); Art. 73-XXI (Congress legislates federal crimes and organized crime, and enacts a single national code of criminal procedure, sentence execution and juvenile justice governing both the federal and the common order); Art. 94 (the Supreme Court of nine Ministers, plus a judicial-administration body and a Judicial Discipline Tribunal); Art. 102-A (the Public Prosecution of the Federation is organised as an autonomous public body, the Fiscalía General de la República); Art. 21 (public security is a shared function of the Federation, the states and the municipalities; the investigation of crimes corresponds to the Public Prosecutor with the police under its conduct and command); Art. 18 (the penitentiary system, organised for social reinsertion); Art. 96 and Art. 116-III (judges elected by direct citizen vote — see the 2024 reform); and Art. 102-B (the human-rights commissions and their non-binding recommendations).