Mosquito MK4

Detective's comment:

The Mosquito™ Anti Loitering Device / Anti-Vandal System (Le Mosquito/Beethoven in France, Swiss-Mosquito in Switzerland) is the solution to the eternal problem of unwanted gatherings of youths and teenagers in shopping malls, around shops and anywhere else they are causing problems. The presence of these teenagers discourages genuine shoppers and customers from coming into your shop, affecting your turnover and profits. Anti social behavior has become the biggest threat to private property over the last decade and there has been no effective deterrent until now.