Mexico, PEI refers to the Policía Estatal de Investigación (State Investigative Police). [1]

The PEI operates as the criminal investigation and detective branch of a state’s security apparatus. When a crime is reported, it is the PEI agents who work alongside the Public Prosecutor’s Office to investigate crimes, execute search warrants, locate missing persons, and apprehend suspects. [1, 2, 3]

Depending on the state, the PEI works directly under the local Secretaría de Seguridad Pública (SSP) and the Fiscalía General del Estado (FGE). [1, 2]

If you are currently in Merida or elsewhere in Yucatan, let me know:

• What specific assistance you need (e.g., reporting a crime, checking on an ongoing case, or verifying a missing persons alert).
• Any details about the situation you are dealing with.

I can help guide you on the right local reporting procedures or find the correct contacts to get the help you need.