Garcia, José AntónioGrilo, CarlosDomingues, PatrícioMiragaia, Rolando2025-11-052025-11-052025-10-07Garcia, J.P.; Grilo, C.; Domingues, P.; Miragaia, R. INTU-AI: Digitalization of Police Interrogation Supported by Artificial Intelligence. Appl. Sci. 2025, 15, 10781. https:// doi.org/10.3390/app1519107812076-3417http://hdl.handle.net/10400.8/14512Article number - 10781Traditional police interrogation processes remain largely time-consuming and reliant on substantial human effort for both analysis and documentation. Intuition Artificial Intelligence (INTU-AI) is a Windows application designed to digitalize the administrative workflow associated with police interrogations, while enhancing procedural efficiency through the integration of AI-driven emotion recognition models. The system employs a multimodal approach that captures and analyzes emotional states using three primary vectors: Facial Expression Recognition (FER), Speech Emotion Recognition (SER), and Text-based Emotion Analysis (TEA). This triangulated methodology aims to identify emotional inconsistencies and detect potential suppression or concealment of affective responses by interviewees. INTU-AI serves as a decision-support tool rather than a replacement for human judgment. By automating bureaucratic tasks, it allows investigators to focus on critical aspects of the interrogation process. The system was validated in practical training sessions with inspectors and with a 12-question questionnaire. The results indicate a strong acceptance of the system in terms of its usability, existing functionalities, practical utility of the program, user experience, and open-ended qualitative responses.engArtificial intelligencePolice interrogationMultimodal emotion recognitionDecision support systemjournal article10.3390/app151910781