Sprint - Following the footsteps of its competitor, AT&T, Sprint also staffs its call centers with underpaid inmates. Nintendo - To pack their Game Boys, Nintendo hired a subcontractor who, in turn, hires prisoners at deplorable rates. JC Penney - Since the 90s, JC Penney has used prison labor for its clothing line. Mar 26, 2019 · Teaching prisoners practical work skills for a new chance in life. 19 March 2019 - "All prisoners shall be treated with the respect due to their inherent dignity and value as human beings," states the first of the Basic Principles of the Nelson Mandela Rules (the United Nations Standard Minimum Rules for the Treatment of Prisoners), of which UNODC is the guardian..