Det. Sgt. Matt Hlavac » Contact Us Administration Public Safety Public Works Administration Go back to directory. Add to Address Book. Det. Sgt. Matt Hlavac Detective Sergeant – Criminal Investigations Folly Beach Department of Public SafetyPublic Safety Work Phone: 843-588-7003work Work Email: firstname.lastname@example.orgINTERNET Categories: Public Safety - All, Public Safety - Police Updated 11 months ago. Public Safety (Emergencies: 911, Non-Emergencies 843-588-2433) Public Works Submit an online work request.