Paulo Barbosa Marques is a chartered clinical and forensic psychologist and a law enforcement officer. He is a former 2nd Lieutenant at the Portuguese Army Special Operations Forces. Paulo began his law enforcement career serving as a frontline police officer in the Polícia de Segurança Pública (PSP) and later as a criminal investigator at the Criminal Investigation Department—Organized Crime Brigade, where he investigated mobile organized crime groups (MOCGs) from the Eurasian region.

Currently, he is an Inspector at the Serviço de Estrangeiros e Fronteiras (SEF), the Portuguese Immigration and Borders Service. He holds a master’s degree in law and security from the Faculty of Law—NOVA University of Lisbon, a postgraduate diploma in Internal Security, and specialized training in forensic psychological assessment, criminal investigation, counterterrorism, and hostage negotiation.

Over the past years, his research has focused on the police officers’, prosecutors’, and judges’ perceptions of investigative interviewing operational practices and training needs in Portugal. Paulo is a founding member and a former Secretary-General of the Portuguese Society of Psychiatry and Psychology of Justice and an International Investigative Interviewing Research Group (iIIRG) Regional Champion for Portugal. Occasionally, he acts as an international consultant in capacity-building initiatives in the fields of law enforcement and immigration and asylum.