Since 1993, Sentinel Offender Services has provided community based, offender-funded monitoring services across North America ... . Working with law enforcement, community corrections agencies and the court system, we provide customized offender management solutions that help to reduce recidivism and improve reentry success. These solutions combine electronic monitoring technology, alcohol and substance abuse testing and community-based offender management programs. All stakeholders – agencies responsible for program management, the local communities they serve, and the offenders who work diligently to reenter society as positive, law abiding citizens - are supported. read more