On January 5, Veracruz state authorities detained the municipal police force of Medellín de Bravo. In a communiqué, they informed that the 48-hour legal detention of the police officers was done to investigate the possible involvement of the agents in Sánchez's forced disappearance. The entire police force, composed of thirty-six members, were called in for questioning. On January 7, a state judge ordered an extension of the legal detention of 13 policemen to thirty days. Bravo confirmed that the extension was made in order to continue investigating them. The policemen were kept together because authorities believe that they were responsible by omission or for actively participating in Sánchez's kidnapping. "There is evidence that the policemen did not do what they were supposed to do. Had they done their task, they could have prevented [Sánchez] from being seized from his home", Bravo said. In addition, he added at a press conference that DNA, dental, and anthropometric investigations were made on the cadavers found in the central region of Veracruz to see if they matched Sánchez's profile. Bravo said that one of the corpses, located on January 5 in the municipality of Soledad de Doblado, was possibly Sánchez's, but that it was physically unrecognizable because it bore signs of torture. When it was discovered, the body had been decomposing for 36 to 48 hours. Bravo said authorities would not discard or confirm Sánchez's status until the investigations issued results. The forensic specialists who worked on identifying the bodies also worked on the bodies found in the case of the mass disappearance of 43 students in Guerrero in late 2014. On January 10, however, Sánchez's son confirmed that none of the corpses found corresponded to his father's.