I guess it's not whether its the football crowd type or not really that's the issue. The resources of the police will be stretched so probably can't spare the manpower
The thing is in London there are some pretty decent shops selling "Genuine Designer" clothes and clever "electronic" gadgets. In Birmingham they've only really got a few pound shops and takeaways. So as soon as everyone gets a free golf umbrella and a can of Tizer they'll all be boing boinging back to the squats.
In fact, the police should issue every hoody with a voucher for the pound shop and set up free Shandy bass dispensers at every high street. That should confuse them enough to go back to bed.