Methods and aims of investigative interviewing of adult witnesses: An analysis of professional practices

Eyewitnesses provide crucial evidence for the investigation of criminal cases. We analysed professional police interviewers’ behaviour by conducting a literature review. Our results indicate that the interviewing techniques used by untrained and trained investigators are predominantly inappropriate and harmful to memory recall. The way investigators curtail and select witnesses’ responses suggests that they look for specific information. As a subsequent step, we analysed investigative interviewing in terms of professional objectives, identifying the types of information that the police inquire about during the interview. Based on our results, we conclude future research should perform a fine-grained analysis of professional interviewing procedures with the aim of producing effective interviewing techniques that meet investigators’ real-world objectives.