Hi Ganjamon420
Please take heed to the the other members words of caution. In the USA a undercover officer can and will tell you he/she is not a police officer and it will hold up in any US Court. The whole idea is that they are "undercover" and can and will do anything in their powers to arrest you. I have no idea where or how this urban myth came about but it is a myth indeed. Please be very carefull and remember that in this business your best friend can also be your worst enemy.
sincerely
annaC