S.C. Code Ann. § 50-23-185: Inspection of watercraft related facilities.

Any law enforcement officer may inspect a junkyard, scrap metal processing facility, salvage yard, marina, repair shop, boat yard, dry dock, licensed business buying, selling, displaying, trading watercraft or outboard motors, new and used or parts of watercraft and outboard motors, or both, parking lots, and public garages or any other person dealing with salvaged watercraft or outboard motors or parts of them.

The physical inspection must be conducted while an employee or owner is present and must be for the purpose of locating stolen watercraft or outboard motors, investigating the titling or registration of watercraft or outboard motors wrecked or dismantled.