Aren't Tug and jeri saying the same thing - the presumption in English and US law is innocent until proven guilty, therefore if the prosecution fails to prove guilt, the accused is assumed innocent.

Tug's other comment is about the 'Not Proven' category which exists in Scottish law, but not in English or US law, and it is not the same thing as 'Not Guilty' (aka 'innocent'). BTW Scotland and England are different countries, and do not have a completely universal system of law.