Chair, I may ask Peter and David if they wish to come in and help on this, but certainly, there are challenges. I think defining arm's-length bodies, defining public bodies, you will end up with a different definition, and there are different approaches, and I think one of the things that the public bodies unit has to discharge, of course, is the more direct support for the arm's-length bodies, but I know, even from my previous role, that, of course, it had a very significant role supporting me in my NHS Wales chief executive role around the public appointments process, around supporting mechanisms like honours, for example, within the health system. So, it does have a responsibility to point to a wider variety of organisations, if it doesn't have the oversight responsibility, as well.
We try to get around the different status of organisation by trying to help with, where needed, body-specific guidance. There are, for example, framework documents in place, and there will be more general guidance that we have to provide, using the public bodies unit, such as the pay remit. But, actually, it's important to recognise that, whilst these are a collection of bodies under the arm's-length label, they still have different contexts. So, you have a combination of companies, charitable trusts, royal charter-led institutions, as well as some more traditional public service bodies, and therefore it is important that, whilst trying to create some consistency, you do allow for some of that different context to apply. So, yes, there are some constraints on that, but the original 'Delivering Together' report was trying to bring a more coherent framework together, and I think we've been able to discharge that and still make progress.
Certainly, when we're looking at the establishment of units, they really should be a decision of last resort. We want mostly to try to use the existing mechanisms that are there. But, irrespective of when there are thoughts to establishing a new arm's-length body, it's really important that the officials, in terms of advice that will end up in front of Ministers, have actually understood and worked through the guidance that would apply. We have issued formal guidance in the organisation. There was a bulletin that we issued to make sure that people knew that it's quite a high bar that needs to be set. I think the three main principles that we would expect to be considered when deciding on which public body should be set up are: whether the body is going to need some kind of external expertise to deliver its objectives; whether the body needs to have more of an independent nature, certainly independent of Ministers and perhaps needs to have a particular focus on facts and figures associated with that; and also there are approval processes in place—so, of course, officials aren't just able to decide that it's a good thing of itself and they will need to seek the usual approvals, whether they are, in the first instance, at director general level and, certainly, of course, at ministerial level as well.