White Oaks School pot smoking kids and vandalism

There is a walkway from Redbank Cres. to White Oaks High School field. In the morning, afternoon lunch breaks and late afternoon, school kids gather to smoke pot, drink and hang out. A couple of weeks ago, tagging (very obscene and graphic) appeared on a new fence. Also, my fence on the other side has been damaged (broken and smashed lattice work) and now has to be repaired. Garbage is thrown into both yards. And the walkway is strewn with broken glass. I've sent an email with lots of images and heard nothing in return.