Sir Julian Lewis: Further to that point of order, Mr Speaker. I would like to state that Sir Ming Campbell, as he then was, was the perfect example of how it is possible to disagree with another parliamentarian on a key issue and yet work side by side on other issues without any rancour or reservation.

My dealings with Ming did not get off to the best start, as we were generally on opposite sides of a debate about the replacement of Trident submarines and the replacement of continuous at-sea deterrence by part-time patrols. Nevertheless, once we got to know each other better on the Intelligence and Security Committee, we found ourselves making common cause on such issues as the safeguarding of the vital BBC Monitoring service for the future, the need to enhance spending on defence with an improved defence budgeting priority and, above all, the folly that could have happened of Britain intervening militarily in the Syrian civil war.

In short, Ming brought courtesy, style, courage and grace to public life to the benefit of society as a whole.