Will the right hon. Gentleman bear in mind that the statement he has just made will relieve the anxieties of many people who have heard this statement made on what seemed to be indubitable authority, and may we take it—[Interruption.] I am prepared to give my right hon. Friend the name of my authority, if he so wishes. Are we to take it that my right hon. Friend is giving a categorical assurance that this practice has never happened?