The warden of any correctional institution of the state of Kansas, with the advice and consent of the secretary of corrections, may extend the limits of the place of confinement of an inmate who has been confined in a correctional institution at least two years, who has a good behavior record and who has a minimum security classification, to allow such inmate to leave the confines of such correctional institution unaccompanied by a custodial agent for a prescribed period of time within the state of Kansas for other than reasons now prescribed by law.
K.S.A. 75-5260