I live where there is a dead end street against the park. My dog walker (who does not live in Northridge) noticed used condoms, needles, etc. at the end of the road by the park (as have I). He had the state police come into our neighborhood for about a week in unmarked cars and, of course, they didn't spot a thing. However, whenever a strange car parks there, I call 911. Regarding where the Civic Association fees go, about once a year there is an accounting in our newsletter.
Please report ALL suspicious activity. Maybe the police will get the idea that the neighbors are sticking together and won't put up with this kind of "crap" in our neighborhood. I've lived here for more than 20 years and have never had any problems until these last 2 - 3 years.
I have tried to contact Dave Bart and have left messages on his phone but have not gotten any response from him.