The effects of building and maintaining rapport on cooperative mock eyewitness recall

Although building rapport before an investigative interview is recommended—and sometimes empirically beneficial—to eyewitness memory, no research has experimentally examined the effects of maintaining rapport during a witness interview on adult eyewitness recall. As a result, the present study assessed the impact of rapport on eyewitness recall accuracy by comparing a pre-interview rapport only condition with a maintained rapport condition (where rapport was built before and maintained during the interview) and a no rapport control condition. Results revealed no benefits (or detriments) of building initial rapport—or any additional benefits of maintaining rapport—on witness recall quality, quantity, or ‘don't know’ responses. Our findings suggest that rapport or its maintenance may not directly affect eyewitness recall. However, as rapport is a humane eyewitness interviewing technique with some empirical support, we still advocate for its continued use.