Sheriff, in the United States, a public official, usually elected, who is in charge of law enforcement in a county (or parish). A sheriffs principal duties are to enforce the law and to carry out decisions of the county court. A sheriff serves legal papers, summons jurors for the county court, and maintains the county jail. One or more deputy sheriffs may be appointed, and other persons may be deputized when needed. The office originated in England in about the ninth century. A sheriff was the king's overseer in a shire, the old term for county.
After you get a speeding ticket, you've probably mumbled (after the police officer left, of course) something about being stopped to satisfy a quota. Well, you're probably right. Lots of police departments have speeding ticket quotas.
Because of the murkiness of maritime law, it's hard to pursue crimes committed on cruise ships. What makes it so easy to get away with a crime on the high seas?