sentences:  It provides court protection, jail administration, patrol and detective services for all unincorporated county areas, serves civil process and criminal papers, provides School Resource Officers at County High and Middle Schools and CV Community College, and narcotics crime investigation.Newton, Hickory, Conover, and Maiden have municipal police departments.The North Carolina Bureau of Investigation, the SBI, provides investigative assistance to local law enforcement agencies when requested by the sheriff, local police departments, the district attorney, or judges.