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
The remarkable rescue of baby elephant Roi, who faced starvation after poachers killed its mother, was captured on film.
The judgment means obese workers in the UK could claim they are technically disabled and entitle them to benefits or to seek compensation.
As forensics examine the evidence in the school were 148 people, mainly children, where killed, students prepare to return to the classroom.