lie, you will probably be forced to lie again if you become a cop
I've been a LEO for the past 9yrs, and trust me you do not want to lie. Not only does this show what kind of character you are but when the lie comes out as they usually do then you have an ethics issue and no prosecutor will touch any case you bring them. That is another reason most departments don't want people with drug histories. If you really want to get into Law Enforcement it doesn't hurt to have a military background. I know most people who want a career in one profession don't want to be told to look at another but in my experience if you show your future employers the length that you'll go to serve the country or public many little things will be looked at a different way. Just my two cents hope it was helpful.