I was up at the usual location in Bolton today (Monday afternoon) and there were 3 police vehicles driving by in an hour. The 3rd was a signed Landrover which pulled up behind each parked car til it moved off, and even went down the cut thro by the small pond and shifted the people there.
Just be aware, its the first time ive seen that amount of police activity there, and it was a deliberate effort to move people on.