Évaluation du rôle des caractéristiques personnelles des enquêteurs policiers sur la conduite d'entrevues d’enquête auprès d’enfants victimes d’agression sexuelle
Since the 1990’s, disclosure of child sexual abuse (CSA) has been studied extensively. In addition to characteristics related to the child and the context of the CSA, the types of questions used by investigative interviewers (ex. invitations and open-ended questions) are another critical component for the child’s disclosure and the amount of details provided by the child related to the incident. Despite their participation in training programs, few investigative interviewers use open-ended questions once in the field. This research project aims to determine whether certain personal characteristics are related to investigators’ adherence to a structured interview protocol, their use of open-ended questions in an investigative interview with a child victim of sexual abuse and the amount of details obtained from the child during this interview.  Two studies were conducted to attempt to answer this question. The first study was conducted at the École nationale de police du Québec with 24 French Canadian police investigators after following a one-week training program aimed at using the National Institute of Child Health and Human Development (NICHD) interview protocol. These investigators performed a mock interview at the end of their training to test their practical competence. Interview performance was positively related to cognitive abilities, female gender, and the personality trait Openness to Experience and negatively to stress management and investigator’s experience.   The second study was conducted with 13 police investigators from the Service de police de la Ville de Montréal. A total of 114 real investigative interviews conducted with child victims of sexual abuse were collected and scored. Results showed that emotional intelligence, and the personality traits of Extraversion, Agreeableness and Conscientiousness were positively related to adherence to the NICHD interview protocol and the ratio of open-ended questions. The number of years of experience and personality trait Neuroticism were negatively related with these two performance criteria. Cognitive abilities were related to the amount of details obtained from the child per question.   The interpretations of these results and their implications for the selection and training of investigative interviewers are discussed.
Investigative interviews Interview techniques Child sexual abuse Police investigators Emotional intelligence Personality traits Cognitive abilities Training