The prison service ("Kli'a") sectors guards Israeli military prisons. It is divided into two: the service responsible for guarding prisons and detention centers with Israeli prisoners, and the service responsible for guarding the two detention centers containing Palestinian detainees, Shomron and Etzion. When the military police controlled the major detainment prisons, Megiddo, Ofer and Ktzi'ot, each of the two sub-sectors has a unique training course. As of 2007 however, all jailors undergo the jail instructors' course. The actual jailors, or jail instructors, are considered IDF commanders for all intents and purposes.