Iowa Code § 908.1
A parole officer having probable cause to believe that any person released on parole has violated the parole plan or the conditions of parole may arrest such person, or the parole officer may make a complaint before a magistrate in the judicial district in which the person is being supervised, charging such violation, and if it appears from such complaint, or from affidavits filed with it, that there is probable cause to believe that such person has violated the parole plan or the terms of parole, the magistrate shall issue a warrant for the arrest of such person. If a parole officer has newly discovered evidence which indicates that a person released on parole should not have been granted parole originally, the parole officer shall present the evidence to the board of parole and the board may issue an order to rescind the parole.
Iowa Code § 908.1
88 Acts, ch 1091, §6; 2018 Acts, ch 1068, §1