4th amendment ????
If the FBI is offering bounties, then - irrespective of whether it's a formal arrangement, or ad-hoc, there is a *very* good argument that Geek Squad/Best Buy are acting as "agents of the state".
The moment that relationship is established to the satisfaction of a court, then the defendant has the immediate (and retrospective) protection from unlawful searches provided by the US Constitutions fourth amendment. Which would require that the FBI had a warrant *before* they went a-snoopin'
Add that to the fruit of the poison tree doctrine, and this is a very shaky case. Generally US law is very clear that you can't break the law to enforce the law. (Unlike the UK where i's positively encouraged)
Biting the hand that feeds IT
