Puddy_Tat
naturally fluffy
It's, essentially, what they're doing here in Wales - I was stopped at one during the previous lockdown (sort of Novemberish) and asked where I was going and for what purpose.
as i've said on another thread, i did get stopped by police (or at least pcso) in berkshire while i was driving to work in the first lockdown (had letter from employer saying i was considered essential worker)
the snag with the regional tiers thing was made very clear the weekend before xmas when there was a huge rush to leave tier 4 london before the deadline and pile on to overcrowded trains
i guess it's not practical to come up with a ruling where everyone has to stay indeifinitely where they are at the moment the decision is announced, but there's got to be better ways of doing it...