cops can and do lie for a bust and get away with some pretty major ones because there is no one to say otherwise...other than the nearly convicted. they can also bust you for asking to buy off of them! if you MUST sell to strangers, do it by mail. at least you'd have a little head start should things go bad. better yet, stick with your close friends and family. if you're good and have your shit together word will spread around fast enough with only them involved, giving you a nice cushion.