I do not oppose my hon. Friend's argument. Indeed, I strongly support it and I took a delegation to the Minister at the end of last year. My hon. Friend is exactly on the point. Cannabis should be available on prescription under medical supervision for the relief of pain for certain specified conditions. That is all that we ask. Even if the Government's reason for the long delay in considering that proposal is that more research is needed, it will be difficult to carry out research unless cannabis is available, as it was before 1973, for the treatment of those specific conditions. The research is conditional on the availability.