Protection of Freedoms Bill

I ask the hon. Gentleman, who always speaks up for the rights of the individual, this: why should a totally innocent person who seeks to intervene to stop a fight—one of the have-a-go heroes of this world, of whom he is the champion, not just in Shipley, but in other parts of the country—have their DNA retained because of their act of kindness in trying to stop further violence? It is absolutely wrong for that to happen; such people should be able to intervene and not fear that any DNA should be kept.