I was at this demo (just over 2 years ago). Police imposed conditions of 10 minutes protest - not reasonable conditions at all. They held a coach from London and searched it, then sent it back saying the demo had finished.
Myself and others were illegally threatened with arrest if we didn't supply names and addresses.
This comes after the Kingsnorth Greenpeace protesters were found not guilty of criminal damage.
Hopefully this is the start of a backlash against police oppression and intimidation.
The Climate Camp legal team is currently preparing a case against police oppression (I have a complaint in there as part of the case). Maybe this victory will help get a win there, too.