Honeypot?

In law enforcement, a sting operation is a deceptive operation designed to catch a person committing a crime. A typical sting will have a law-enforcement officer or cooperative member of the public play a role as criminal partner or potential victim and go along with a suspect's actions to gather evidence of the suspect's wrongdoing.
Sting operations are common in many countries including the United States,[1] but not allowed in other countries such as Sweden.[2]