The only legal course of changing decisions is through arbitration. The difficulty in precisely defining a valid point reliability from the lack of an objective scale for measuring the impact of techniques. Therefore the Referee must have a clear, personal concept of scoring techniques which must be consistent with both the rules and other experienced Referees' concepts. The competition rules define scoring techniques as accurate, powerful contact made by legal hand or foot techniques. Accurate contact means a blow which contacts the opponent's scoring area with precision, utilizing the central part of the hand or foot without encountering and blocking impediments.
Powerful contact means forcible striking with clearly visible mass and velocity.
Therefore, scoring techniques can be defined as clean, forcible contact to the scoring target. The Referee's general concept of scoring techniques has, in some respects, two problems. Accuracy means the degree of precision in the contact made between the legal scoring area and the striking part of the technique. Precise Contact Partial Contact Over-extended Contact Impeded Contact Power means the amount of force transferred to the opponent's body. The velocity and the mass with which the technique is loaded.