But the initial contact shouldn't be made in the first place, unless the photographer really does look like they are involved in something suspicious.
Directions from the top have been sent down the line that photographer are to be left alone.
How difficult can it be?!?

Mark

He [Chief Constable Andy Trotter] added: "We need to make sure that our officers and Police Community Support Officers [PCSOs] are not unnecessarily targeting photographers just because they are going about their business. The last thing in the world we want to do is give photographers a hard time or alienate the public. We need the public to help us.