Since 2011. An occasional commonplacing of the U.S. Circuit Courts of Appeal.
Not written by a barrister. The name was thought up by a second-year American law student sitting in a coffeehouse in Manhattan. Neither an authoritative statement of the law nor legal advice. Don't rely. Quick work.
Seventh Circuuit: USA v. Robert Hosler
Sufficient evidence of enticement under the statute where statements seem to provoke the illegal conduct -- there is no requirement that the victim's will has to be overcome.