Law graduate, graduated from the UASLP, he joined as a professor in the year of 1970. In the year of 1987 he is appointed research professor in the Faculty of Law. The lines of research it develops are: Public International Law with focus on the development of international treaties. The role of Mexico in international organizations: UN, OAS, EU. Criminal Procedural Law with emphasis on the prevention and investigation of antisocial behavior. The development of specific methodologies in criminal investigation, intervention protocols: chain of custody. Studies on the functions and powers of the operators of the criminal justice system: Judge of control, Judge of oral trial, Judge of execution, Public Ministry (Prosecutor) Public Defender and Advisor of victim or offended.