I think I have tried to deal with that important point. Effectively, it is a discussion about which came first, the chicken or the egg. On the exact phraseology—I am just trying to read and, being a simple man, I can do only one thing at a time; it is difficult to multitask at the Dispatch Box—my understanding was that the advisory committee used a particular phrase, which was not as strong as the noble Lord perhaps suggested. However, it was an invitation to the Government to explore legislation, which they then chose to do through a multidisciplinary panel along the lines I outlined earlier.
Clearly, there will be a point—once we have come back and published the Bill—where the Home Secretary, quite rightly, wants to explore further. The letter of 26 May to which the noble Lord referred, and which I do not have in front me, sought the scientific advice of the ACMD on how we use forensics to determine what is a psychoactive substance. It was a particular task, which I hope demonstrates that there is a healthy relationship between the Home Office and the ACMD, which is not of course uncritical. It has a very important role to play. The fact that the chair and other members of that committee formed part of the group is important.
Let me just read out a point that has been highlighted for me. However, since October 2014, when the Government published its response to the expert panel’s report and Ministers wrote to the ACMD, we have been open and transparent about our plans to develop the blanket-ban approach, now encapsulated in the Bill. The Home Secretary has written again to the ACMD and we look forward to receiving its views on how we can strengthen the UK’s forensic capacity and capability to support the implementation of the legislation. I think that is broadly what I said the letter was about and what the response was. If there is any difference, I will write to the noble Lord.
In the mean time, I would be grateful if my noble friend would consider withdrawing his amendment.