I am the teacher of a residential school here in Toronto.
We are facing problems with antisocial people these days. They steal away goods from class and also writes bad words on the blackboard when we return back to the class in the morning. The security guard has no clue how the intruder manages to get inside the school campus. We are doubtful whether these are done by the school staffs themselves.
Anyway, we are planning to have intrusion security systems at the school campus. Is there anybody over here with a similar experience? If so, please give some genuine replies and suggestions.