This is something nobody seems to be teaching about interviews with suspects, victims and witnesses.
When the person you’re interviewing answers a question by saying, “I don’t know.” be sure to record that answer.
When doing statement analysis later or simply reviewing testimony, you or another investigator may find the subject’s reply to be very useful!
During the interview when the subject says, “I don’t know.” it may seem like a dead end to you, but sometimes the subject will change his or her story/statement later and you will have documented evidence of the original story!
Let me know if you have a question you’d like me to answer in one of my weekly videos.