The Turkish National Police has undergone many changes as a result of Turkeys decision to seek European Union (EU) membership. One ramification of these changes is the TNP codification and implementation of formal mentoring relationships to increase the effectiveness of mentoring relationship. Based on a survey of 400 high ranking officers from the Turkish National Police (TNP), this study examines the effects of mentoring relationships on job satisfaction and organizational commitment. The findings indicate that an effective mentoring relationship has a positive effect on job satisfaction and organizational commitment.