I believe the idea of using evidence, reason, and logic to discover the truth is what is done by non-fundamentalists both within and without the justice system. I believe that fundamentalism means the truth is already assumed, and that evidence, reason, and logic are considered acts of hubris, that the truth is an act of faith that is indisputable.
I would agree with this. And the way I feel fundamentalists label logic, reason, and evidence as hubris is by indicating humanity's falliblity through Adam's story. And instead of attemtping to try go beyond what a 2000 year old book says fundamentalists view that there is no point. You could say its some form of nhilism which is based of the bible that its all useless because humans couldn't reason themselves out of a box and cannot act beyond the way GOD says they can.
Since under such circumstances, the difference between revealed and discovered truth is a basic philosophy that seperates the fundamentalist from the rest of humanity, would this have an impact beyond science, education, and economics?
Yes I believe it might, for to say that all truths have been revealed to them equates the notion of a superiority within all aspects and levels of culture. While Christianity does not necessairly preach superiority, if you have all the truths, how could you not start to begin to believe that everyone else is wrong? And then that begins to draw conflict between fundamentalists and any other culture no matter what way you cut it. This superiority will be demonstrated in the language used as well in the manner a fundamentalist will communicate to people in the out culture. They will be 'looked down' upon for not seeing the truth and out culture will consequently not like being treated as an inferior. So yes socially there will be a large impact. I think it might be like the French in the sense that the way French is, treats any non-natives as being out group and inferior...(tentative). And look at all of the France's problems.
Do religious fundamentalists seek to change the Western concept of justice with one more compatible with a belief in revealed, rather than discovered truth?
Couldn't say but frankly, fundamentalism suffocates reason, logic, objectivity and evidence. So it probably could destroy western justice on anything not preached in the bible.