I am grateful to my hon. Friend for speaking on this. I well remember the debate we had in Committee, when I picked up that Bill from Dame Cheryl, on prisons testing and substance misuse. I also remember speaking to those from the Prison Officers Association during the passage of that Bill, and they said to me that some of the interactions they were having with prisoners were off the scale, even compared with the issues they had with controlled substances, with prisoners attempting to commit suicide, in absolute rages and totally uncontrollable. Are those the sort of examples he is trying to pin down with this Bill so that things like that in treatment centres in the community can be addressed?