Shido: In shime-waza or kansetsu-waza over-stretching the leg

IJF SOR 18.1.2.25.   In shime-waza or kansetsu-waza over-stretching the leg is forbidden and the referee will announce mate immediately and sanction the athlete with shido.

Special attention will be given to situations: where tori, whilst applying a shimewaza, also over-stretches and straightens uke’s leg. Mate must be called immediately and a shido given.