Located in Houston, the Parole Division supervises offenders released from prison who are serving their sentences in Texas. The division also investigates various parole plans proposed by inmates. It provides educational and vocational training services. The Parole Division offers aftercare treatment, drug and alcohol testing and electronic monitoring services. The division provides support, counseling and intervention services. It offers a range of therapeutic and outpatient programs related to substance abuse. The Parole Division administers the Special Needs Offender Program (SNOP), which provides supervision services for offenders diagnosed with mental and physical impairments. The division is a part of the Texas Department of Criminal Justice, which operates through community justice assistance, victim services, and administrative review and risk management divisions.