I went on ride along with him and he told me that what shocked him the most was how stupid the average criminal was. That same night he made a guy put his hand on a computer screen then he flashed it screen on and off and told the guy that he palm print was being run through the FBI database and if he didn't give us his real name and address before the answer came back he would be arrested for lying to the police. He gave it to us and we arrested him anyways for possession but when I ask my friend how he knew he was lying he laughed and said it was because he had arrested the same guy just about a month earlier and even though he couldn't remember his name he remembered he had lied about it then.