Very unique and cool game!
Some things that could have made the game better are either a toggle to certain parts of the audio recording like a slider/timeline.
Could have used more types of evidence instead of just the 3 that are the same throughout (maybe work permits, passports, photographs, etc) would have made the game much more interesting.
Telling us the wrong detail when we get the interviewee wrong would also help give me closure because I don't know why Dan Coon was off the hook.
Finally, there are some typos, I'd consider using a spell checker! :D
Overall, I had a lot of fun with it and would like to see it more developed.