Victims of press intrusion have written an open letter to the Prime Minister ahead of his appearance before the Liaison Committee calling on him to reject a proposed scheme put forward by the newspaper industry.
Instead the signatories, including Kate and Gerry McCann - whose three-year-old daughter Madeleine went missing in Portugal six years ago - and Harry Potter author JK Rowling, urged the Prime Minister to make progress on the Royal Charter plan which received cross-party backing in March. The charter had been due to be presented to the Queen for approval on May 15 but it was put back to give more time for consideration of the alternative scheme put forward by the industry.
In July, Mr Cameron said he believed the plan put forward by the press had "serious shortcomings" and he supported the document backed by the Commons.
The letter to Mr Cameron, organised by campaign group Hacked Off, claims that the alternative proposal, which would avoid any state underpinning for the new regulatory regime, "clearly lacks the key elements of independence and effectiveness" that Lord Justice Leveson recommended in his report on press standards.