The idea
A recent law means the police can stop photographers and question them about why they are taking pictures as a means to prevent terrorism. This law is meant for use in areas which could be targeted by terrorists (unmarked to the public), for example The Houses of Parliament in London.
Police officers are illadvised about this law and frequently exceed the requirements of this law by confiscating cameras and threatening arrest of innocent photographers and members of the public. The police are seemingly beginning to believe that we are not allowed to take pictures in public, and also seem to use this as an excuse for heavy handed policing and state control.
This law needs to be addressed.
For example, see this article where the police claim they don't even need a law to stop people taking pictures-
Why is it important?
We have ill advised police officers using 'terrorism' as a blanket excuse in order to restrict our freedom in public places.