S.C. Code § 63-7-670
If emergency protective custody of the child was taken by a law enforcement officer pursuant to this subarticle, and the department concludes after the preliminary investigation that the child should be returned to the child's parent, guardian, or custodian, the department shall consult with the law enforcement officer who took emergency protective custody unless the department and the law enforcement agency have agreed to an alternative procedure. If the officer objects to the return of the child, the department must assume legal custody of the child until a probable cause hearing can be held. The alternative procedure agreed to by the department and the law enforcement agency may provide that the child must be retained in custody if the officer cannot be contacted, conditions under which the child may be returned home if the officer cannot be contacted, other persons within the law enforcement agency who are to be consulted instead of the officer, or other procedures. If no alternative procedure has been agreed to and the department is unable to contact the law enforcement officer after reasonable efforts to do so, the department shall consult with the officer's designee or the officer's agency.
S.C. Code § 63-7-670