An inmate of a state correctional institution who escapes from it may be arrested and returned to the institution, by an officer or employee of a state correctional institution without any other authority than this chapter, and by any peace officer or other person on the request in writing of the superintendent or the state director.
Iowa Code § 904.507
83 Acts, ch 96, §88, 159; 83 Acts, ch 101, §52; 84 Acts, ch 1184, §12 85 Acts, ch 21, §54