Re: UK law ought to apply, surely?
...we should be pressing for the US prosecutors to present their evidence to the CPS so they can prosecute the man under the law he has grown up with.
While your post has received the upvotes it deserves for the overall sentiments expressed I would quibble slightly with the section quoted above; while he may well have "grown up with UK Law" he certainly seems to have ignored it.
IANAL but I am of the view that we have to be entirely certain about the reasons for possibly staying his extradition: is it because (a) he has AS; (b) because of a belief that he will harm himself if extradited, tried (and if found guilty) and punished in the US; (c) because any sentence imposed by the US Courts would be far harsher than one imposed by a UK Court for the same offence on the basis of the same evidence?
I would not be happy to find that his extradition was stopped purely on the basis of (a) or (b) because on that basis someone accused of a similar offence but without the supposed mitigation of being on the Autistic Spectrum, or without an expressed or implied risk of self harm or suicide might find themselves extradited regardless of any discrepancy between US & UK sentencing policy.
The Gary McKinnon case was now some time ago, and given that computer misuse is hardly likely to suddenly stop I am of the view that HMG really ought to come to a settled policy covering cases of this kind and make that policy publicly known; if the US doesn't like that policy then so be it. IMHO (and again IANAL) the UK should refuse to extradite for any offence if the sentence is likely to be greatly different to that in the UK, even if all the other qualifying reasons are present.
At the same time it ought to be made abundantly clear that being on the Autistic Spectrum or threatening self harm will not be acceptable defences or pleas in mitigation in a UK Court. I wonder in cases like this if "the accused" would be willing to be found "unfit to plead" with all the implications of such a determination.