UK’s Withdrawal from the EU

Further to the Secretary of State’s answer to the right hon. Member for Haltemprice and Howden (Mr Davis), is he really saying that if the Government have no deal in place by the end of March—if they have run out of time—then they would go ahead with no deal on 29 March even when top police chiefs are saying that it will make the country less safe and NHS leaders are saying that there will be shortages of medicines? Is he 100% committed to no deal on 29 March in those circumstances, or are there any circumstances in which he would extend article 50?