They are quite innovative given the reality they work in, at least we get to know they issue advance warnings, i have been robbed at gunpoint, chased with a panga at night, mugged in daylight in CBD, usually the crowd lynches this guys when they succeed in nabbing one which is ghastly, this hessy system is the best for dealing with well known "armed thugs" given our limited resources.
Ras Kienyeji Man