This is a pathetic misuse of the police legal powers imo.
This is just a load of old folks out for the day having a protest, they are not being terrorists or supporting terrorism.
They are clearly not terrorists, nor do they support terrorists - they just want the killing to stop.
There is also very strongly the free speech element that they are standing up for, the government should not be curtailing our right to say that we support the stopping of the killing of unarmed civilians etc.
Surely there must be some motorists they could ticket instead!