18 U.S.C. § 2191: Cruelty to seamen

Whoever, being the master or officer of a vessel of the United States, on the high seas, or on any other waters within the admiralty and maritime jurisdiction of the United States, flogs, beats, wounds, or without justifiable cause, imprisons any of the crew of such vessel, or withholds from them suitable food and nourishment, or inflicts upon them any corporal or other cruel and unusual punishment, shall be fined under this title or imprisoned not more than five years, or both.