Quote Originally Posted by CaseyJones13
lying to you can be considered entrapment which is against the law as well.
I'm afraid that's a myth, and it's a very commonly repeated one, too. If you research this thoroughly (or talk to law officers who work in drug enforcement), you'll learn that they can and do lie all the time about this sort of thing. And it's not considered entrapment at all. It's considered a functional part of helping them do their jobs. A means to an end, in other words. This rumor about their not being allowed to lie if you ask them straight out whether they're a cop is a dangerous one, and it's been debunked many hundreds of times in other areas of this site.

If you're worried that the person is a possible cop, the only safe thing to do is not to put yourself at risk of a bust until you know otherwise. This is why it's always advisable not to do business with strangers but with someone who has references from another trusted source.