S.C. Code Ann. § 14-7-1610
It is the intent of the General Assembly to enhance the grand jury system and to improve the ability of the State to detect and eliminate criminal activity. The General Assembly recognizes the great importance of having the federal authorities available for certain investigations. The General Assembly finds that crimes involving narcotics, dangerous drugs, or controlled substances, as well as crimes involving obscenity, often transpire or have significance in more than one county of this State. When this occurs, these crimes are most effectively detected and investigated by a grand jury system which has the authority to cross county lines.
The General Assembly further finds that there is a need to enhance the grand jury system to improve the ability of the State to detect and eliminate public corruption. Crimes involving public corruption transpire at times in a single county, but often transpire or have significance in more than one county of this State. The General Assembly believes that a state grand jury, possessing considerably broader investigative authority than individual county grand juries, should be available to investigate public corruption offenses in South Carolina.
The General Assembly further finds that there is a need to enhance the grand jury system to improve the ability of the State to detect and investigate crimes involving the election laws, including, but not limited to, those named offenses as specified in Title 7, or any common law crimes involving the election laws where not superseded, or any crime arising out of or in connection with the election laws, or any attempt, aiding, abetting, solicitation, or conspiracy to commit a crime involving the election laws.
The General Assembly further finds that related criminal activity often arises out of or in connection with crimes involving narcotics, dangerous drugs or controlled substances, obscenity, or public corruption, and that the mechanism for detecting and investigating these related crimes must be improved also.
Accordingly, the General Assembly concludes that a state grand jury should be allowed to investigate certain crimes related to narcotics, dangerous drugs, and obscenity and should also be allowed to investigate crimes involving public corruption and election laws.
Nothing herein limits the authority of a county grand jury, solicitor, or other appropriate law enforcement personnel to investigate, indict, or prosecute offenses within the jurisdiction of the state grand jury.