<P> The PFM replaced the earlier Federal Investigations Agency (Agencia Federal de Investigación, AFI) after much of its force was transferred to the new Federal Police (PF). The Federal Investigations Agency itself had replaced the notoriously corrupt Federal Judicial Police (Policía Judicial Federal, PJF) by the presidential decree of former President Vicente Fox on November 1, 2001 . In May 2008, the previous acting chief of the AFI, Édgar Eusebio Millán Gómez, was assassinated . </P> <P> The Secretariat of Public Security of Mexico City (Secretaría de Seguridad Pública de la Ciudad de México--SSP), unlike the previous two, does not have national reach, but it does manage a combined force of over 90,000 officers in the Federal District (DF). The SSP is charged with maintaining public order and safety in the center of Mexico City . </P> <P> The investigative Judicial Police of the Federal District (Policía Judicial del Distrito Federal--PJDF), are organized under the Office of the Attorney General of the DF (the Procuraduría General de Justicia del Distrito Federal). The PGJDF maintains 16 precincts (delegaciones) with an estimated 3,500 judicial police, 1,100 investigating agents for prosecuting attorneys (agentes del ministerio público), and 941 experts or specialists (peritos). </P> <P> The principal police force of Mexico City is the Protection and Transit Directorate, also known as the Traffic Police, which consists of some 32,000 officers organized into thirty - three precincts . It is the largest single law enforcement organization in Mexico . </P>

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