Euorsceptic ministers may have to use a freedom of information requests or a parliamentary questions to obtain EU-related documents produced by their own staff, a top civil servant has said.

Sir Jeremy Heywood, Britain’s most senior civil servant, has been accused of stifling debate among eurosceptic ministers by issuing new guidance banning ministers from accessing official documents and receiving briefings ahead of the referendum.

I am a journalist and author. I am a staff writer at the UK edition of WIRED magazine and in 2015 my book, Freedom of Information: A Practical Guide for UK Journalists, was published. I created FOI Directory in 2012.