Sorry Res Nullius just read your post again.
All the court of appeal judges are English judges as are many of the commissioners such as Nice to whom you refer. All are appointed by the bailiff.
Fine ok, I didn't know that, what is interesting about Justice Nice is that he was not an appeal judge ( if that is what you meant). Judge Tucker ( also from the UK) a very old senior citizen type chap started trying the case, and Judge Nice took over. This was not an appeal but full blown trial, whereby a sentence was handed down. Maybe the Bailiff was on holiday, it does show outside hired help has been brought in though.