Watching some movies in Hong Kong, I found that in court, the judge had to wear a curly white wig on his head. What happened?

These TV dramas are generally before 1997, because Hong Kong was a British colony before 1997. It is one of the most distinctive traditions of English courts that judges and lawyers wear wigs in court. In some former British colonies deeply influenced by the British judicial system, we can also see this cultural imprint with British characteristics. Like Hong Kong.

Why do British judges and lawyers wear wigs? Many people who study history have put forward various explanations, but it is difficult to convince everyone. Some people say that in the Middle Ages, overwork and illness made judicial personnel lose all their hair prematurely. In order to hide their "glory" in public, wigs became popular and became a scene of the British court. Some people say that judges wear wigs to show respect, and lawyers wear wigs to cover up and protect them to some extent, because they are worried that their defense results will not be recognized by the defendants and their families. But this is not so much a reasonable explanation as a joke made up by people who have problems with lawyers to discredit them.