WTAF - Teachers 'executed' in shooter drill sue Indiana sheriff's office for trauma, injury

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7. It sounds as if the drill was originally meant to incorporate actual teachers

but if that's the case, it was of course a disaster and the whole attitude by the officers was just deplorable, almost sadistic.
My initial thought was that it would be a drill for the benefit of the police which meant actors or volunteers who were sufficiently briefed would be the ones participating.

Even though I have absolutely no knowledge regarding these matters, slowly "executing" your colleagues to show them this happens if they don't do anything is not only cruel but it also doesn't seem beneficial at all should the teachers ever have to face such an extreme situation.