A host of senior political figures are warning against state regulation of the press, saying such a move could backfire and lead to greater abuse of victims.

On the eve of the Lord Justice Leveson's phone hacking report, a letter advising against regulation has been signed by more than 60 MPs and 23 peers, including eight former cabinet ministers.

The report is widely expected to recommend greater control of the press. But this would ignore the fact that the actions that triggered the inquiry were criminal, the group warns.

They say the failure was not of regulation but law enforcement.

The letter has been signed by Lord Tebbit, Lord Coe, David Blunkett, Peter Bottomley, Liam Fox, Frank Field, Peter Lilley, John Redwood, Tim Yeo, former Scottish Secretary Lord Forsyth, Baroness Boothroyd and Scottish Labour MP Brian Donohoe.

The letter states: "We agree with the report of the Joint Parliamentary Committee which came out against any form of statutory regulation, not least because of the signal it would send to emerging democracies."

The issue is devolved, meaning the Scottish Government will decide on any new regime in Scotland. MSPs are expected to debate the report's findings next week while MPs have scheduled a debate for Monday.