Lord Justice Leveson's call for a system of voluntary independent self-regulation of the press posed a problem for the politicians - how to make any new system independent enough to satisfy the victims whilst at the same time making it not so independent as to convince the press to walk away and refuse to take part.

BBC: How the leaders reached Leveson deal

Lord Justice Leveson not only recommends statutory 'underpinning' for a new independent system of press regulation - rejecting the industry's own proposal for a new body as "not going nearly far enough" to demonstrate independence from publishers.

BBC: Leveson Report: Analysis

But if we are to avoid this, the public will insist on a system of robust, independent regulation with credible sanction-making power.

BBC: RTS: Jeremy Hunt sets out cross-media regulation plans