Yes. I did more research than I ever wanted to and saw some things I wish I didn't. I went on ride-alongs spent time with Homicide Cold Case and SVU detectives hung out in subways learning how to spot pervs and pick-pockets viewed an autopsy went to a police firing range and witnessed court cases and I read read read.
I think everyone goes through chapters in their life and there was a time when I wasn't feeling terribly positive about what I was contributing to film or wasn't feeling as if I was going in the direction I wanted and I re-evaluated what I was doing.