A proffer agreement is not a promise of absolute immunity, but rather an agreement between the parties for a certain level of use immunity.In exchange for the defendant providing valuable and true information, the government agrees to provide the defendant with several important benefits. While the proffer agreement will explain that no firm promises can be made regarding the outcome of the defendant’s case, in the agreement, the government will commit to not use the information provided by the defendant in court, except under very limited circumstances.