Mr Ford, who was Justice Minister at the time, said neither he nor colleague Stephen Farry, also an Executive Minister then, had been privy to the paper.
“It appears this document came as a result of a purely civil servant process, which did not lead to a political discussion around the Executive table at the time. Questions need to be asked as to why that was the case and why other Ministers within the Executive were not shown the evidence produced.
“If it had been made public, perhaps it would have changed some minds in the lead-up to the EU referendum. Instead, we got untruths and misconceptions from the Leave campaign. It is not too much to ask for Departments to articulate a truthful message to the public and not keep it hidden as it doesn’t follow your preferred narrative.
“What is clear from the OFMDFM document is the risks involved with Brexit were well known in advance. The First Minister and deputy First Minister have a duty to explain their role in allowing this situation to develop.”