METHOD FOR PROTECTING SCHOOLS AND OTHER LARGE GATHERINGS OF PEOPLE.

           

            Very simply, the chemical release of odors as a perimeter defense or individual room canister that is released either by a person or a "gunshot detection device".  WILL stop a killing spree by the use of that chemical.  Either as a "skunk spray/ or chemical to make you tear, or vomit, or in some other way attack the senses of a perpetrator for evil.  Skunks do it all the time.

            Delivery of the chemical:   injected into the pipe, a  propellant is used  for compressed gas or air through a pipeline suspended or at ground level, which then escapes the piping, by using common spray nozzles.

            Mechanism is simply something to create or hold the compressed gas/ a valve that can be actuated with the chosen means/ plastic piping for easy and cost of installation (simply cut slits to accomplish "a spray nozzle".    And the injection of chemicals by common siphon methods/ direct injection; or other means.  One or more chemicals can be used.  The chemicals can be incorporated into the holding tank as well.

            The primary defect in this plan is all parties in the location will receive the same treatment;   yet it is better than the alternate, in this case assumed to be "gunshots".  If automatic means are used, they need to be applied with directional microphones; so as to establish the least probability of misuse.  The entire system needs to be deactivated when no one is around so as to limit intentional misuse.  Simple, cheap, effective.