Law Enforcement Agencies in Lanier, TX TX › Cass County Agencies serving the city of Lanier in TX. Agency Types in Lanier Coroners 1 agencies County Jails 1 agencies Municipal Police 1 agencies Sheriff 1 agencies All Agencies in Lanier, TX Jefferson Police Department Cass County Marion County Jail Cass County Marion County Justice of the Peace Cass County Marion County Sheriffs Department Cass County
