The purpose of a law enforcement interview with a sexual assault victim is to help them: (1) remember details about their sexual assault, and (2) share those details with investigators. The investigator’s role is then to document this information and evaluate it within the context of the entire investigation. This module offers a brief overview of the scientific research on stress, trauma, and memory, as well as the unique dynamics of sexual assault. This information is then applied to the practical tasks involved in the initial response to a sexual assault report, follow-up interviews, and documentation. It also addresses the impact of interviews on investigators themselves, and offers ways for law enforcement agencies to support investigators and high-quality sexual assault investigations.