The former Conservative prime minister Sir John Major has told the BBC he is willing to take any future government in court that would suspend parliament to deliver a no-deal Brexit.

MPs have consistently voted against a no-deal Brexit, but by closing Parliament (proroguing) in the run-up to Brexit day they would be denied of the opportunity to block it. Major said he would be willing to initiate a process of judicial review of any decision to call for elections while the government reaches the October 31 deadline.

During the campaign to succeed prime minister Theresa May, the former Brexit Secretary Dominic Raab was explicit about his intention to suspend the parliament to ensure that the UK’s default legal position is enforced, a prospect the former Conservative prime minister finds “utterly and totally unacceptable.”

The frontrunner to succeed Theresa May, Boris Johnson, has refused to rule out proroguing Parliament. “I’m not going to take anything off the table,” Boris Johnson said during a televised debate with Jeremy Hunt, reiterating his commitment for the UK to leave the EU on October 31 with or without a withdrawal deal.

John Major warned aspirant successors of Theresa May that forcing a “no-deal” Brexit by suspending parliament would drag Queen Elizabeth II into a “constitutional controversy,” as she would be advised by the prime minister to call for elections, a request that she has no constitutional mandate to reject. Major said that in such an event a “queue of people,” not least himself, would be prepared to go and seek judicial review of the prime ministers’ advice.

Jeremy Hunt has categorically stated that he would not close parliament to impose a no-deal Brexit.

The next prime minister of the UK will be selected by 160,000 Conservative party members, who will vote for a successor to Theresa May.