S.C. Code § 16-8-290
When a criminal gang member is released from the custody of a jail, prison, or corrections facility, and the criminal gang member was in the custody of the jail, prison, or corrections facility for a violation of the provisions of this article, the jail, prison, or corrections facility must transmit notice of the release of the criminal gang member to the sheriff of the county in which the crime was committed. Notice also must be given to a sheriff that the criminal gang member is being released and has provided an address within the jurisdiction of that sheriff for the county in which the criminal gang member intends to reside. If the crime was committed in a municipality, or if the criminal gang member will reside in a municipality upon release, that law enforcement agency must transmit the same notice to the chiefs of police of those municipalities.
S.C. Code § 16-8-290