If a member of the parole board is granted immunity from prosecution in a criminal case, what is the effect of that immunity?

This immunity exists to ensure that parole board members function as impartial fact finders in each case before them. Sellars v. Procunier, 641 F.2d 1295, 1303 (9th Cir. 1981) ("If parole board officials had to anticipate that each time they rejected a prisoner's application for parole, they would have to defend that decision in federal court, their already difficult task of balancing the risk involved in releasing a prisoner whose rehabilitation is uncertain against the public's right to safety would become almost impossible.").