The UK Government has quietly changed the Anti-Hacking Laws quietly that exempt GCHQ, police, and other electronic intelligence agencies from criminal prosecution for hacking into computers and mobile phones. The changes were disclosed at the Investigatory Powers Tribunal, which is currently hearing a challenge to the legality of computer hacking by UK law enforcement and its intelligence agencies. The Home Office has rejected all the claims made by Privacy International and said there have been no changes made to the CMA that would affect the scope of spy agencies.
Source: https://thehackernews.com/2015/05/anti-hacking-law.html