The Criminal Investigations Division is led by a Captain, who reports to the Chief of Police. This division is responsible for preliminary and follow-up investigations conducted by Department members. The Criminal Investigations Division consists of five components.

The Detective Division is divided into two sections, the Crimes Against Property Unit and the Crimes Against Persons Unit. Each unit is commanded by a Lieutenant. The Crimes Against Property unit investigates Burglaries, Auto theft, Grand Larcenies, Fraud and White Collar Crime. The Crimes Against Persons Unit investigates Homicides, Robberies, Sexual Assaults, Child Abuse, Elder Abuse and Assaults with Intent to Kill.

The Multijurisdictional Forensic Services Unit is a component of the Criminal Investigations Division, and is staffed with police officers who conduct investigations at crimes scenes for the collection and preservation of physical evidence throughout the county. In 2002, the Forensics Services personnel have been consolidated with the York County Forensics Services Unit under the leadership of the 16th Circuit Solicitor’s Office.

Narcotics Team, whose purpose is to suppress organized crime, especially drug trafficking. The Department is a charter member and participating agency of the York County Multijurisdictional Drug Enforcement Unit. Rock Hill PD has a Supervisor who serves as commander of the DEU East Office housed at the Rock Hill Police Department, and for operational purposes reports to the Senior Commander of the DEU. The DEU is a partnership comprised of all criminal justice agencies in York County which conduct drug investigations and prosecute such offenses.

The Violent Crimes Unit was created in 2013 to focus on repeat offenders, gangs, and violent crimes within Rock Hill as well as partner with other agencies (local, state, federal) on apprehending violent criminals.

Finally, there is the Victims Services component which is comprised of a Law Enforcement Victim Advocate. The LEVA is responsible for providing support to the victims and witnesses of serious crime from the moment of the incident until the case has been disposed of in court.