A writ of prohibition is a writ directing a subordinate to stop doing something the law prohibits. In practice, the Court directs the Clerk to issue the Writ, and directs the Sheriff to serve it on the subordinate, and the Clerk prepares the Writ and gives it to the Sheriff, who serves it. This writ is normally issued by a superior court to the lower court asking it not to proceed with a case which does not fall under its jurisdiction.