Officials

Officials

The game is adjudicated by two umpires, who make all decisions on the field and whose word is absolutely final. One umpire stands behind the non-striker's wicket, ready to make judgements on LBWs and other events requiring a decision. The other umpire stands in line with the striker's popping crease, about 20 metres (20 yards) to one side (usually the leg side, but not always), ready to judge stumpings and run-outs at his end. The umpires remain at their respective ends of the pitch, thus swapping roles every over.
If the technology is available for a given match, a third umpire is sometimes used. He sits off the field, with a television replay monitor. If an on-field umpire is unsure of a decision concerning either a run out or a stumping attempt, he may signal for the third umpire to view a television replay. The third umpire views a replay, in slow motion if necessary, until he either reaches a decision or decides that he cannot make a clear decision. He signals the result to the on-field umpire, who must then abide by it. If the equipment fails, the replay umpire signals no decision. The replay umpire cannot be used for any decisions other than run outs and stumpings.
Whenever any decision is in doubt, the umpire must rule in favour of the batsman.
If the ball hits an umpire, it is still live and play continues. If it lodges in an umpire's clothing, then it is dead.
The game is also presided over by a match referee, who watches from outside the field. The referee makes no decisions of relevance to the outcome of the game, but determines penalties for breaches of various rules and misconduct. In professional games, these penalties are monetary fines.
Arguing with an umpire's decision is simply not tolerated. Anything more than a polite question to the umpires is heavily frowned upon and could attract a penalty from the referee. The most serious misconduct in a cricket match is of the order of a rude gesture to an opponent or throwing the ball into the ground in disgust. Such gross misbehaviour would attract large fines and possibly match suspensions. Penalties for physical violence can only be guessed at, but would possibly be a career suspension.