"Trick or trap: In the Harvard Law Review's "Bait, Mask, and Ruse," Elizabeth Joh of the U.C. David School of Lawargues that allowing police to hide themselves behind various digital veils — whether it's by using a bait device or posing under a fake identity on Facebook — creates opportunities for police to creatively trick people into committing crimes they otherwise wouldn't.
"The majority of courts don't permit you to raise a successful entrapment defense if you're predisposed to commit that offense anyway, so entrapment law has never been a winning defense for most criminal defendants," Joh told Mic."