The legislative purpose in enacting this act shall be deemed to be establishment of a policy of treatment of persons convicted of felonies in this state by placing maximum emphasis on rehabilitation of each such person while in the custody of the state or under the jurisdiction of the courts of the state, consistent with the interests and safety of the public, so that a maximum of persons so convicted may be returned to private life in the communities of the state with improved work habits, education, mental and physical health and attitudes necessary to become and remain useful and self-reliant citizens. It is the intent of the legislature that judges, the secretary of corrections, his or her agents, subordinates and employees and the Kansas adult authority, its agents, subordinates and employees will construe and apply this act and acts of which it is amendatory or supplemental liberally to rehabilitate, train, treat, educate and prepare persons convicted of felony in this state for entry or reentry into the social and economic system of the community upon leaving the custody of these state agencies and officers.