9th Cir. Model Jury Instr. (Criminal) 5.5

The defendant contends [he] [she] was entrapped by a government agent. Whether or not [name of witness] was acting as a government agent in connection with the crimes charged in this case, and if so, when that person began acting as a government agent, are questions for you to decide. In deciding those questions, you should consider that, for purposes of entrapment, someone is a government agent when the government authorizes, directs, and supervises that person's activities and is aware of those activities. To be a government agent, it is not enough that someone has previously acted or been paid as an informant by other state or federal agencies, or that someone expects compensation for providing information.

In determining whether and when someone was acting as a government agent, you must look at all the circumstances existing at the time of that person's activities in connection with the crimes charged in this case, including but not limited to: the nature of that person's relationship with the government, the purposes for which it was understood that person might act on behalf of the government, the instructions given to that person about the nature and extent of permissible activities, and what the government knew about those activities and permitted or used.