[3] Then-President-elect Enrique Peña Nieto announced on November 15, 2012, that he would eliminate the Secretariat of Public Security as part of his planned administrative reforms after taking office.

[4] It was dissolved on January 3, 2013, and replaced by the "National Security Commission" (Spanish: Comision Nacional de Seguridad), an internal organ of the Secretariat of the Interior,[5] as seen on its website.

[6] Coinciding with then-President Andrés Manuel López Obrador taking office, a new Secretariat of Security and Civilian Protection was established in 2018.

According to Article 30a of the Organic Law of the Federal Civil Service[7], it had an office with the following main functions: developing security policies and proposing public policy on crime at the federal level, including rules, instruments, and actions to effectively prevent the commission of crimes, proposing Federal Executive measures to ensure consistent policies between the criminal divisions of the federal public service, chairing the National Council for Public Security at the Council of National Security, policies, actions, and strategies of coordination in the field of crime prevention and criminal justice policy for the entire national territory, dealing expeditiously with complaints and citizens' complaints regarding the exercise of its powers, organizing, managing, administering, and monitoring the PFP, and ensuring the honest performance of its staff and implementing its disciplinary system, safeguarding the integrity and heritage of the people, preventing the commission of federal crimes, and preserving freedom, order, and public peace, establishing a system to collect, analyze, examine, and process information for the prevention of crime, using methods that ensure strict adherence to human rights and running the penalties for federal crimes and administering the federal prison system, as well as organizing and conducting activities to support those that have been released.

For the study, planning, and dispatching of matters within its competence, the Secretariat was composed of the following administrative units and bodies: