S.C. Code Ann. § 56-5-6170: Enforcement.

The Department of Public Safety shall administer and enforce the provisions of this chapter with respect to State highways, and law enforcement officers generally shall also enforce this chapter within their respective jurisdictions. No police officer in investigating a traffic accident shall necessarily deem the fact that an accident has occurred as giving rise to the presumption that a violation of a law has occurred. Arrests and criminal prosecution for violation of this chapter shall be based upon evidence of a violation of the law.