The British Journal of Photography has an article stating
Set to become law on 16 February, the Counter-Terrorism Act 2008 amends the Terrorism Act 2000 regarding offences relating to information about members of armed forces, a member of the intelligence services, or a police officer.
The new set of rules, under section 76 of the 2008 Act and section 58A of the 2000 Act, will target anyone who 'elicits or attempts to elicit information about (members of armed forces) ... which is of a kind likely to be useful to a person committing or preparing an act of terrorism'.
A person found guilty of this offence could be liable to imprisonment for up to 10 years, and to a fine.
Presumably this will include photographers covering any police activity - including violent treatment of suspects.
(via Boing Boing.)