100% this. We have had a spate of crime, muggings and drug-related issues around our area in the last 6 months or so, the local police & residents have met numerous times about it. Lots of words and "please call the non-emergency 101 number when you see these gatherings" - I then spent an entire HOUR on hold to the 101 before giving up. A couple were mugged later that evening by that very group...