Kokkar Kempo DVD 1 by Omar Martinez Sesto Jiro Otsuka ⑤ Moving to other lines SOSHIN GO KATA GOGYO ⑤ Moving to other lines with a successive step 88 It represents the culmination where "kiai" developed in jujutsu evolves naturally into Aiki and so people selected for these tasks must not only be physically prepared but they must also have nerves of steel" Without a doubt martial artists represent a group of people who have many of the attributes needed by security experts and their techniques can be adapted to very different situations: "Kokkar is a combat system of direct application which has been developed to meet extremely high risk situations and even though it is based on Martial Arts its techniques are fundamentally of a professional nature"