S.C. Code Ann. § 17-19-10: Offense shall be prosecuted upon grand jury indictment; exceptions.

No person shall be held to answer in any court for an alleged crime or offense, unless upon indictment by a grand jury, except in the following cases:

(1) when a prosecution by information is expressly authorized by statute;

(2) in proceedings before a police court or magistrate; and

(3) in proceedings before courts martial.