A Guardian journalist accused the Attorney General Dominic Grieve of failing to show "reasonable grounds" for blocking the release of letters sent by Prince Charles to government ministers.
The High Court today ruled that Grieve's use of a ministerial veto to stop the letters being published was unlawful but the Attorney General said he will "pursue an appeal."
The public has a right to know if the heir to the throne is advocating policy or promoting causes to government ministers.
We welcome today's appeal court judgment finding that it was wrong to block the release of the letters.
We hope the Attorney General will recognise he has reached the end of the legal road and that government departments will now publish the correspondence so that the public can judge for themselves.
More top news
Jay Oxley was diagnosed with a rare form of cancer and had to be put into a coma.
UKIP leader Paul Nuttall is set to contest the Stoke Central by-election later this year according to ITV Central's Political Correspondent
Jeremy Corbyn has accused Theresa May of producing a "bargain basement Brexit" plan and "demeaning" the UK's European standing.