The world jurisdiction generally carries two legal meanings, firstly, it is used to denote the assumption of authority or power of the court over a legal proceeding, and secondly it means the area over which the authority or power of a court could extend. No authority cab be said to have exercised its jurisdiction if it took for a material fact what was not in law that fact, if it proceeded to at it grave and obvious disregard of a material provision of law, if it exercised a discretion without the existence of the situation in which it could be exercised, if it violated the principles of natural justice when the law had not permitted it to do so, and if it gave reasons for its conclusions which could not, in those circumstances, rationally lead them.
