La caméra portative est de plus en plus convoitée en tant que solution pour améliorer les pratiques policières. Dans cette optique, ce projet propose de contribuer au développement des connaissances sur l’impact du visionnement de vidéos de caméras portatives sur la rédaction de rapport, puisqu’il existe actuellement peu d’études et de directives claires sur les politiques qui décrivent les meilleures pratiques de rédaction de rapport. Cette étude vise donc à étendre les résultats de recherches sur les caméras portatives sur la qualité des rapports policiers. Trois objectifs spécifiques sont visés : 1) évaluer l’impact du visionnement prérapport sur la qualité des rapports policiers, et plus particulièrement en évaluant la qualité globale, la précision et l’exhaustivité des rapports ; 2) évaluer l’impact de la rédaction de rapport en deux temps, notamment en ce qui concerne la précision et le type de modifications apportées aux rapports complémentaire ; 3) analyser l’impact que peuvent avoir le sexe, le rôle dans l’intervention et l’expérience sur la qualité des rapports policiers, indépendamment des conditions expérimentales. 361 participants ont donc participé à des simulations d’interventions policières à l’École nationale de police du Québec. Le scénario d’intervention policière impliquait des acteurs et nécessitait l’utilisation de force mortelle par arme à feu afin de conclure l’intervention. Par la suite, les rapports policiers des participants ont été évalués selon quatre conditions expérimentales liées aux caméras portatives (1 — sans caméra, 2 — caméra sans visionnement, 3 — caméra avec visionnement, 4 — rédactions en deux temps). Les résultats soutiennent que le fait de porter une caméra corporelle améliore légèrement la qualité de rapports policiers. De plus, le visionnement prérapport est le meilleur prédicteur de la précision des rapports policiers, car il diminue la présence d’erreurs factuelles, en plus d’avoir un faible impact sur l’exhaustivité des détails. La rédaction de rapport en deux étapes obtient les meilleurs résultats pour la précision des rapports en plus d’améliorer l’exhaustivité, tout en respectant le principe d’objectivité des rapports selon la perception des policiers. Finalement, l’expérience en tant que policier est un prédicteur important de la qualité d’un rapport. / Body-worn cameras are coveted as a solution to improve police practices. Thereby, this project proposes to contribute to the development of knowledge on the impact of of viewing body-worn cameras footage on police report writing, since there are currently few studies and a lack of clear guidelines on policies for best practices in report writing. This study therefore aims to extend the research results of body-worn cameras on the quality of police reports. Three specific objectives are targeted: 1) to examine the effect that viewing body-worn cameras footage has on the quality of police reports, and more specifically by evaluating the overall quality, accuracy and the number of details of reports; 2) to assess the implication of the two-step writing process, particularly in regard to the accuracy and the type of modifications revised in complementary reports; 3) to analyze the impact that gender, role in the intervention and experience can have on the quality of police reports, regardless of experimental conditions. 361 participants took part in simulations of police interventions at the École nationale de police du Québec. The police intervention scenario involved actors and required the use of lethal force by firearm in order to conclude the intervention. Afterwards, the police reports of the participants were evaluated according to four experimental conditions related to body-worn cameras (1- without camera, 2- camera without viewing, 3- camera with viewing, 4- two-step writing). The results support that wearing a body- worn camera slightly improves the quality of police reports. In addition, pre-report viewing is the best predictor of the accuracy of police reports, because it reduces the presence of factual errors, in addition to having a small impact on the number of details. The two-step report writing obtains the best results for the precision of the reports and for improving the exhaustivity, while respecting the principle of objectivity of the reports according to the perception of the police officers. Finally, experience as a police officer is an important predictor of the quality of a report.

Utilizing multiple videos is an upcoming approach for developing learning material. It consists of recording scenes from different perspectives using diverse recording approaches, for example, 360-degrees camera, a drone camera, and body cameras. Up until now, there is a lack of efficient ways to present such recordings and extract the benefits of applying this type of media in learning contexts. To close this gap, this thesis explores suitable manners for presenting this specific type of media, aiming to be helpful for the further training of emergency-related learners. To achieve this goal, we performed a study structured in three major blocks: design of the solution, development of the designed system, and assessment of the suitability of the presented solution. The design was informed by a literature review, a qualitative expert interview, and a preferences questionnaire. After the design process, the system named Theia was developed using web-based technologies. Finally, to validate the system’s suitability within the context of this project, an expert evaluation was carried out. It consisted of a mixed assessment combining qualitative methods, based on task performance and qualitative interview assessment, and the usage of a Technology Acceptance Model (TAM) questionnaire, aiming for the usability and the ease of use of the developed tool. After the evaluation, the proposed system was concluded to incorporate a suitable layout, navigation, functionalities, and interactive mechanisms for an adequate video presentation of media footage from simultaneous recordings within an educational context for emergency-related students. Additionally, valuable insights were extracted from the analysis of the results for the future of the area of research, including recommendations for an optimal footage recording and the starting point for future work in the research community.