A proffer is unique in that the defendant essentially incriminates himself by openly talking about his role in, and his knowledge of, the crime. The rules for a proffer are simple: The defendant is expected to share everything that he knows about the crime in question and the people involved. The defendant must tell the truth and must not withhold any relevant information. He also must not attempt to minimize his involvement or exaggerate other individual’s roles in the offense. A proffer is not an opportunity to blame others or present oneself as an innocent bystander the forum for this approach is at trial.