Murder is still a common law crime in England & Wales.
Scotland still uses the old caution, missing out the bit between ‘but’ and ‘court’.
In Scotland you may not get the chance to speak to your lawyer. You are very unlikely to be allowed to have one sit in on your interview - it’s not a protected right. But in Scotland ‘arrest’ means something different - once you’ve been arrested the police have to charge you and can’t interview you any further. Up til that point you will have been ‘detained’.
AFAIK murder, rape, assault, theft, robbery, Breach of the Peace and various others are all common law in Scotland.
There are many terms that are very different between the US and Canada too, to the confusion of those Canadians whose understanding of the law comes from TV shows.
For example, we do not have a crime called “rape.” The crime in Canada is sexual assault, whose definitions in aggregate are broader than the US definition of rape, if I understand correctly. We also do not call it “statutory rape” but sexual interference.
You are right, my bad. Cokes defination is still the one used.