Interview experience

My research topic is "Why is it that so many criminals claim to be psychopaths and get away with their criminal behaviors"? Wednesday I had a quite interesting interview with my dad. My fathers name is Samuel Logwood and he has been a detective of the Marion County police department for 11 years. He just recently was promotedto an U.S Marshal. Since this is his occupation I figured he would be perfect for my research project. As an U.S Marshal he has encounters with dangergous criminals daily. I started the interview by asking my dad "what types of criminals do you apprehend daily"? Deputy Logwood stated "My specific job title deals with the more serious offenders such as criminals wanted for murders and rapes." The interview took place right after a brief meeting of the criminals they were looking for that day Before I could ask the next question one of my fathers co-workers Deputy Walker chimed in "yea we pick up the crazy suckers". I found this interesting because my fathers co-workers were not aware of my research topic but hinted on where I was going with it. That statement by Deputy Walker lead to my next question which was "On average how many times do you hear a criminal claiming to be crazy?" My father answered "you would actually be surprised that about 80% of the people we arrest say they need their "medicine" or flat out say Im crazy!" I pretty much got more information than I anticipated on getting when I iniated the interview because right after my dad would finishing answering my question a couple of his co-workers would say a few things. So basically with my interview I killed 2 birds with one stone by interview several people while obtaining valuable information. I asked plenty of questions without touching any sensitive spots with any of the deputies. It was quite a successful interview