@chdot: Driving to exercise now ok (or is that just England?)
I agree that the situation about this is confusing. The article linked to by fimm the other day seems to be contradictory, though I suspect it's really just badly written. The headline reads "Driving to take a walk is lawful during England lockdown, police told". But the first paragraph states: 'Driving to the countryside and walking – where more time is spent doing the latter than the former – is among a list of reasonable excuses for Britons leaving their home during the coronavirus lockdown, according to advice issued to police." Both the OED and WIki seem to agree that, outside of a historical context, "Briton" means a citizen or native of Great Britain/UKGBNI, whereas the actual document issued by the NPCC does state at the top "England only", thus tying it down to location rather than ethnicity or citizenship - which former does seem distinctly more rational.
But it still potentially begs the question: is the situation in Scotland and Wales actually different? Or is it more the case that the clarification issued by the CPS (which only covers England and Wales) was issued specifically to resolve issues arising from actions of police forces in England alone? And if so, was it the case that driving to take exercise was always OK in Scotland and the NPCC didn't feel that that needed clarifying? (I note that the NPCC's own web page states: "The NPCC brings police forces in the UK together," so they presumably do have - or think that they do have - the same role/authority north of the border as they do in Englandshire.)
The NPCC document, which is based on the CPS guidance, is clear that it is intended to clarify "what might and what might not constitute a ‘reasonable excuse’" to leave the place where you live. AFAICS from a quick scan of the relevant sections of the English and Scottish versions of the cornoavirus regulations there is no meaningful difference between what they each list as reasonable excuses. Which might lead one assume that the two regulations have the same meaning and intention - and by logical extension, that if it is the intention that the clarification issued by the CPS should not be regarded as applying equally to the Scottish regulations then it would be helpful if a clear statement to that effect was made.