The difference has long irritated 'the English Establishment' so much that an informal verse was sung at one point as an adjunct to what is now the UK National Anthem (but was not officially added contrary to some popular belief[1]).
It also gave rise to the deeply racist phrase "Scot Free" in relation to people being acquitted in trials - during 'show trials' to crush anti-establishment figures, Scots juries would regularly return 'not proven' verdicts as it was necessary for all parts of an indictment to be 'proved' and juries used the verdict to rebel against unjust trials of English opponents. The phrase was used to denigrate those thus freed by juries and persists throughout the English speaking world today and is in common usage despite it's origin as a racist epithet towards Scots and the Scottish legal system.
[1] http://www.sath.org.uk/edscot/www.educationscotland.gov.uk/s...
The phrase in its oldest form literally refers to getting away without paying tax. Scot is cognate with the Danish (Scandinavian) word skat which means both tax and treasure - the latter meaning incidently being why it can be used as a term of endearment.
This later was broadened to mean getting away without any punishment. I could find no reference online to its use for show trials.
Sources:
https://www.etymonline.com/word/scot-free
https://www.phrases.org.uk/meanings/scot-free.html
https://www.theguardian.com/notesandqueries/query/0,5753,-27...
To add some important context here, the Scottish Parliament came into existence in 1999. So it’s by far not the case that the majority of laws in effect in Scotland were passed by the Scottish Parliament.