31st. District Juvenile and Domestic Court Services Unit is one of the divisions of the City of Manassas Department of Family Services, which provides opportunities to promote stability, self-sufficiency and well-being of residents. The division offers public services to prevent and reduce juvenile delinquency. It works in partnership with families, schools, communities and various law enforcement agencies to provide training and support services for at-risk youths. City of Manassas Department of Family Services offers services for the protection of children and adults by providing information and referrals to community resources. 31st. District Juvenile and Domestic Court Services Unit is located in Manassas, Va.