Well, if we're getting picky, the term for ritual suicide (seppuku) is more correctly rendered "Hara-Kiri" than "Hari-Kari".

Higher court Judges should be appointed by a non-political person (like the Lord Chancellor except that he combined political with non-political offices) for the excellence of their judging. A really good measure is to see how often while in other judging positions (eg lower courts) they are successfully appealed against. The more errors, the less likely to be a good judge.

Parliament should not be involved.

Judges are not legislators. There are many judgments to be found from the UK House of Lords in whicn the judges say that the law should be changed but that that is a job for Parliament. That is absolutely right. Separation of powers.

Otherwise there are no checks and balances.