This is probably a dumb question but...

Let's say someone has read all the newbie "guidlines" and has done their research on a particular provider... lots of good reviews and this someone has even went as far as contacting the provider and feels comfortable and confident in setting up an appointment.

What are the risks of getting "busted" by LE?  Nothing incriminating discussed between both parties.  

Are there raids, taps, or setups that could happen?  Are there any horror stories out there?

A little curious and paranoid...