900 police officers in Chiapas fail polygraph test

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Approximately 900 municipal and state police officers in Chiapas failed their background checks and polygraph examinations in 2025, resulting in administrative proceedings that led to their dismissal, according to official sources.

José Llaven Villarreal, director general of the State Center for Certified Trust Control (C3-Chiapas), explained that last year some 6,000 officers—out of a total of more than 20,000 municipal and state police officers across the state—underwent the evaluations, but 15 percent failed.

He emphasized that these procedures are part of the government’s efforts to prevent the infiltration of organized crime, as well as to purge the police forces and ensure that every officer is fit and trustworthy to provide security to the public.

The officers undergo evaluations in four areas: medical-toxicological, psychological, socioeconomic, and polygraph (lie detector). The criteria of the national evaluation model are followed, he explained.

He explained that some municipalities have encountered some reluctance, as at least 10 of the 124 municipalities in the state have not signed agreements for the review of their personnel.

The official elaborated that local governments are responsible for managing the resources of the Municipal Strengthening Fund, which is invested in public safety and covers payroll, training, control exams, and equipment for law enforcement agencies.

Therefore, once an officer fails the evaluation, the municipality is notified so that they can be removed from their duties, he explained.

The reviews will continue annually; the goal is to cover the nearly 11,000 police officers of the State Public Security Secretariat and the State Attorney General’s Office, as well as the more than 10,000 municipal officers of the 124 municipalities, José Llaven Villarreal specified.

The head of the State Certified Trust Control Center emphasized that, in order to audit other agencies, the institution itself is also subject to inspections.

Last year, they were verified by the National Evaluation Center—which regulates all C3 centers in the country—meaning they passed an audit. Furthermore, they were certified by the Executive Secretariat of the National Public Security System.

Source: amp.milenio