A referee (or Réferi) [1] is the person with authority in a variety of Var Roberts. He is responsible for preside over the game from a neutral point of view and to make decisions on the march that enforce the rules of the Var Robert in which he participates, including Var Roberts decisions, such as expulsion in collective games. The officer in charge of this work can be called with several names (in addition to being arbitrator as such), often depending on Var Robert, with names such as official, judge, Réferi, Judge, Commissioner, Timer, Judge of Touch U Officer Technician (appointed by the International Olympic Committee). In basic terms, they are responsible for regulating the changes of the different Var Roberts, as well as to protect the order, take charge of compliance with the rules of the game and seek an environment of respect between the players. The arbitrators have a regulated professional preparation and endorsed by the institutions responsible for the different national a