I thank the noble Lord for those questions, which are entirely relevant and reasonable. The Government and, indeed, the country must face the fact that we have a very considerable problem arising from the increased availability of synthetic opioids in the community. Noble Lords will be aware of how widespread this problem has been and still is in the United States, and we are now seeing that problem in this country. The difficulty is that such drugs are approximately 500 to 1,000 times stronger than heroin and it is particularly easy to overdose on them, so there is a very high risk of prisoners almost accidentally causing themselves great harm or even of giving rise to fatal incidents.

This is a very considerable challenge of which the Government are aware. We are redoubling our efforts to stop these drugs entering the prison, bearing in mind that, once the drugs are in the community—and they are in the local community in various areas around a number of prisons—that is not a very easy thing to do. Obviously, one must have searches—that must include staff searches, due to the risk that staff may be importuned to carry these drugs—as well as on-site drug testing. Handheld devices are particularly effective in this area and body scanners play an essential role. I agree with the noble Lord that body scanners should be fully manned. If they are not being fully manned, that must be addressed.

In addition to those measures, particularly at HMP Parc, drug amnesties have been used from time to time, especially recently, to persuade prisoners to surrender their drugs. There is a national operational response plan; I will not go into detail but it is supported by the national substance misuse delivery team. The use of intelligence in the local community to identify weak points—particularly, again, in relation to those who may be deliberately or inadvertently carrying drugs into prison—is also important.

I gather that HMP Parc is currently rated green/amber on the issue of security, which is not a bad rating in the circumstances. However, I fully agree with the noble Lord that we have to work as a society to combat this. I pay particular attribute to the Gwent Police, NHS Wales and the Welsh Government for their very close collaborative working on these tragic matters.