High Court sides with Covid inquirypublished at 14:49 British Summer Time 6 July 2023
Lord Justice Dingemans and Mr Justice Garnham have dismissed the government's claim for judicial review.
Cabinet Office lawyers argued the inquiry did not have the legal power to force ministers to release documents and messages it says aren't relevant to its proceedings.
But the lawyer representing the inquiry said the government's stance "would emasculate this and future inquiries".
Boris Johnson had sided with the inquiry, and his representative said there was a "real danger" of undermining public confidence in the process if the department won its bid.
While the Cabinet Office has lost this challenge, the High Court judges said they could choose to make a different application to Lady Hallett.