The purpose of this paper is to demonstrate the work developed by Technical Advisor Office (GAT) and its role as technical advisor to the West Lisbon Public Prosecutor’s Office. GAT was established in partnership with Egas Moniz Higher Education School and West Lisbon Public Prosecutor’s Office. GAT plays a crucial role in assisting the Public Prosecutor’s Office as the main response to cases with higher complexity, and it provides support about measures to protect victims. GAT integrates the forensic psychologist narrowly and directly in monitoring processes in the judicial system, allowing a greater understanding of the phenomenon and facilitating decision-making by the Public Prosecutor’s Office.