(1) In any prosecution for a crime, it is a defense that:

(a) The criminal design originated in the mind of law enforcement officials, or any person acting under their direction, and

(b) The actor was lured or induced to commit a crime which the actor had not otherwise intended to commit.

(2) The defense of entrapment is not established by a showing only that law enforcement officials merely afforded the actor an opportunity to commit a crime.