You Could.....................
become a Corrections Officer! There is no lie detector test!
I am not sure what kind of position you will get with a masters in Criminal Justice though, but your pay will be reflected! I am getting ready to do the same thing!
I dont think they (POLICE) will be asking about AS usage.......unless you bring it up. They are more intrested in pot, coke, heroin and shit like that! If you have done anything harder than coke.........you lie about it. I know quite a few people who admitted to smoking pot and shit and still got in!
I also, will be taking the police officer test later. (after two years of being a corrections officer and my masters in Criminal Justice)
Good luck