What is a fair and judicious manner?

It means reviewing a matter in an even handed way by allowing each side to present evidence and explanation of what occurred, but without using information that cannot be confronted by the other side.

Fair: even-handedly
Judicious: thoughtful

No such thing.

Fairness is something that cannot be defined, because the concept of fairness depends on a person’t point of view. What is ‘fair’ for one person may be utterly unfair for another.

These are both feel-good words but they have no meaning at all, because there is no objective and consistent way to measure what is “fair” and “judicious”.

I agree with @elbanditoroso. However, I will say that in concept, a government may attempt to establish a neutral area from whence the law views things. Where is the neutral place in any polity? Pretty hard to establish. Usually the law favors the powerful and thus fair and judicious refers to the point of view of the powerful.

If there were a way to be fair and judicious, it would mean applying the rules of the polity equally to all citizens. The laws would favor none any further than the favor has already been built into the laws. The justice system would apply the law exactly as the law expresses itself with perhaps help from knowledge about the intent of the lawmakers.

Now, your question mentions “manner.” And that might refer to how a person appears. So one might look evenhanded, and as if one favors no side. One is listening just to the facts and the law and the arguments and deciding without and prejudices or even any pre-existing experience.

That might be a fair and judicious manner. Of course, it is an act. No one can divorce themselves from their experience. So it goes.

It seems to me that @zenvelo gave a great explanation of “fair.” Regardless of your point of view, you can’t really argue with that.