The Supreme court of the United Kingdom is the head of the court system. English law is regarded as a common law system, with no major codification of theaw and legal precedents are binding as opposed to persuasive. 
 The flag that is combined for England and Wales comes from the Laws in Wales Act of 1535 which annexed Wales to England. 
 Sorry I do not know that information. Some of them only speak English and the population is 3 million. 
 Finally, while you were researching did you learn any interesting facts associated with Wales? 
 Do you have any facts associated with Wales law and order?
The flag that is combined for England and Wales comes from the Laws in Wales Act of 1535 which annexed Wales to England.