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The question is "is it legal for the fbi to set up an innocent person and make him a criminal to help bring down a criminal freind???????" The answer is "sometimes". Entrapment is where the government compels someone to engage in a criminal behavior that they ordinarily would not engage in. Entrapment is usually illegal. However, if the government merely provides the defendant with the opportunity to commit the criminal act, this is not illegal. Furthermore, the government absolutely has the authority to ask for a defendant's cooperation in exchange for immunity from pending criminal charges.
I would confirm that anyone presenting themselves as an FBI agent is actually employed by that agency; this can be done by looking in the "blue" pages of your phone book under the federal government section and calling the FBI to confirm that this person and their activities are legitimate. Furthermore, if you have been entrapped, you will want to immediately retain the services of a criminal defense attorney. Best of luck.
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