Psychoactive Substances Bill [HL]

I am grateful to the Minister for giving way. What is his difficulty about using the apparatus already available to the Home Secretary under the Misuse of Drugs Act 1971 to deal with botanical substances and, I think, nitrous oxide—natural substances about which the Government are concerned? It is open to them to classify them perhaps as class C drugs and deal with the problem in that way, distinguishing between natural substances and the synthetic substances that constitute this huge social threat by being barraged into our society week after week to the great danger of our young people.