<p>This study examined the associations between suspect confession and the timing of evidence disclosure, relational interviewing behaviours, and characteristics of the suspect and interrogator using a self-reported questionnaire completed by police officers. In total, 595 police officers who had interrogated suspects involved in serious crimes or residential burglary participated in the study. According to the police officers’ reports, in serious crime cases, the suspect was more likely to have made a full confession when at least one piece of evidence was presented after listening to the suspect’s entire story than in cases where evidence was presented earlier. In contrast, in residential burglary cases, the timing of evidence disclosure was not significantly associated with confession outcomes; regardless of when evidence was disclosed, more than 70% of suspects reportedly made a full confession, and the remaining cases involved partial or no confession. In addition to the timing of evidence disclosure, the suspect’s previous arrests and interrogator’s inappropriate questioning were associated with full confession outcomes in serious crime cases. Among the variables examined, in residential burglary cases, the suspect’s gender was the only variable associated with full confession outcomes. These findings suggest that the association between police officers’ reported interviewing practices and the suspect’s reported confession outcomes may differ depending on the type of crime.</p>