News Group Newspapers, owned by Rupert Murdoch's NewsCorp, admitted that one of its papers- had been involved in incidents of unlawful activity.

This related to its intrusion into the life of Prince Harry and took place over a period of 15 years from 1996.

News Group also apologised to the Prince. It said it was private investigators rather than its journalists who were involved.

The impact of this on journalists of long standing, working for media with strong reputations, will surely reinforce the mistrust that increasing numbers have in journalism. And yet with increasing numbers getting their news on social media sites- much of which is unchecked, and in some cases deliberately false, why are these platforms trusted more?

Presenter Audrey Carville in conversation with Paul Tweed, a lawyer specialising in defamation and by former BBC journalist and editor Mihir Bose.