There is a demonstration taking place this weekend, and I won't share where or what it is about, lets not let politics get in the way of photography, but I am in favour of its causes. But due to the fact that in some parts of my life I am an "upstanding pillar of the community" (or should that be pillock?) I thought I would attend with an amateur photographer kind of hat on, so that if things get a bit rowdy i can always fall into an innocent bystander mode. I really, really couldn't afford to get into trouble with the police - potentially a job loosing encounter if i did. Any tips for discreetly capturing the crowd? What is the polices view on photgraphy of demos? Won't need to many pictures of the bobbies as if I want them i can speak to my son's godfather, who is a serving coppper.