They are like filters. Any successful security is multi layered. If you have a pro at body language and facial cues it can be effective, but 99% of people are useless at it. You have to be trained.
Every single interrogation by police they want done on video because we have digital tools at analyzing an interview which are quite effective.
Every single interrogation by police they want done on video because we have digital tools at analyzing an interview which are quite effective.