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0 10.0 POTENT .'AT, APPLICATIONS OF THE RESEARCH FINDINGS 10.1 -Trotter, W. defines brain concussion as: "an essentially transient state due to head injury which as of instantanious onset, manifests widespread symptoms of purely paralytic kind, does not as such comprise any evidence of structural - - cerebral injury, and Is always followed by amnesia for the. actual moment of the accident." r 10.2 The _ implication of the underlined portion of the above statement is that if a technique were devised to induce brain concussion . without giving either advance warning or causing external physical trauma, the person upon recovery would be unable to recall what had happened to him. Under these conditions the same technique of producing the concussion could be re-used many times without disclosure of its nature. 10.3 First, considering the possibilities of direct impact to the head cr body, it should be. possible. from the findings of this research program to determine the following : a. Optimum design of impacting devices. b. Optimum points of impact on skull or body for the specific effects desired. c. Intensity of the blow for the effect desired. i 10.4 In regard to the potential impacting devices, there are certain design requsites that are apparent at this time: a. The impact should be delivered' without advance warning. b. The area of impact and force distribution should be such that surface trauma does not occur, c. The intensity of the impacting force and its duration should be such as to obtain the desired effect. d. The device should be as small and as silent as possible. 10.5 The specific impacting devices might take the form of any of the following : a. A pancake type black-jack giving a high peak impact force with a low unit surface pressure. b. Concealed or camouflaged spring-loaded impacting devices that trigger upon contact with the head.