[roryirvine]

It would be worth looking at how other countries with comparable legal systems do it.

Eg., members of the Supreme Court of the UK are appointed by the King on the advice of the Prime Minister. The Prime Minister is required by law to recommend the person nominated by an independent commission.

The selection must be made on merit, in accordance with the qualification criteria of section 25 of the Act, of someone not a member of the commission, ensuring that the judges will have between them knowledge and experience of all three of the UK's distinct legal systems, having regard to any guidance given by the Lord Chancellor, and of one person only.

https://en.wikipedia.org/wiki/Justice_of_the_Supreme_Court_o...

This seems to work fairly well and, although specific decisions are argued over as part of normal political discourse, it is generally seen as being non-partisan.

Ireland (which also has a common law legal system) has a similar setup, with the President appointing supreme court justices based on the recommendation of the government who, in turn, are advised by an independent panel. That advice is technically not legally binding, so this is in theory a less-strictly non-partisan system - but in practice it works out about the same.

[0xDEAFBEAD]

If creation of independent nonpartisan panels is so easy, why not just have such a panel govern the entire country?

Any country which struggles to appoint justices in a nonpartisan way will also struggle to assemble a panel in a nonpartisan way, I think.

[wasimanitoba]

I think the difference is that you can specify independently verifiable criteria for the selection process and require participants to decide based on those criteria alone without forcing them to become political actors who must directly bear the consequences of political decisions.

Not totally immune to issues of partisanship, but at least somewhat insulated.

[gcanyon]

It works fairly well because your PM and King aren't complete loons. At the end of the process there has to be someone making decisions, and when that person is a narcissistic 8-year-old in an 80-year-old's body, bad things are going to happen no matter how the system is written.