sentences:  It was formed in 2009 as a reform and renaming of the Federal Investigative Agency (Agencia Federal de Investigación or AFI) which had replaced an earlier agency, the Federal Judicial Police.Some agents of the Federal Investigations Agency were believed to work as enforcers for the Sinaloa Cartel.The Attorney General's Office reported in December 2005 that 1,500 of 7,000 AFI agents — nearly 25% of the force — were under investigation for suspected criminal activity and 457 were facing charges.