The purpose of this study is to examine the efficacy of DBT compared to a standard drug counseling approach for the treatment of opiate addiction and borderline personality disorder (BPD). Treatment research has repeatedly shown that retention of BPD and substance addicted individuals to be the among the most challenging for therapists. DBT has established itself as one of the most effective treatments for treatment retention of these patients and for reducing parasuicidal and self-injurious behaviors.