What constitutes a credible source of corroborative evidence in interviews?

A credible source of corroborative evidence in interviews is found in independent verification of the interviewee's statements from other sources. This is crucial because corroborative evidence serves to strengthen the validity of the information provided by the interviewee. When statements are independently verified, it indicates that the information is consistent across different sources, lending credibility to the interviewee's testimony.

This independence is key since it minimizes biases that might arise from the interviewee's perspective or potential motives they might have. Relying solely on statements made during the interview or on unverified opinions can lead to incomplete or misleading conclusions. Similarly, immediate feedback from the interviewee, while relevant, does not provide the necessary verification needed to confirm the accuracy of their statements. Corroborative evidence ideally comes from external sources that can either affirm or challenge the information presented in the interview, creating a more robust and trustworthy investigative process.