A key phone-hacking suspect worked for senior detectives while he was chief crime reporter of the News of the World, the Standard reveals today.
The activities of Neville Thurlbeck, which date back to 1995, trigger new fears of collusion between the Met and the press.
Thurlbeck, who was arrested on suspicion of illegally accessing voicemail messages in April, has admitted working as an official police source under the codename "George".
He gave a "substantial volume of information that was extremely useful" to Scotland Yard and the security services.
In return, Thurlbeck received confidential information from the Police National Computer that helped himwrite stories on a Labour MP with a conviction for committing an obscene act and an alleged threat to the Queen from stalkers.