I believe that it was nothing more than real anti-German nonsense. It was victor's justice basically speaking. The Scots mistreated and murdered Rudolph Hess without mercy too. But as for the trial I think it was nothing more.
I mean look at it this way, if Brits and Danes won't be tried for their colonial crimes, as we saw against Ireland and Greenland
Then the "evil" Germans or the other fascist enemies of WWII should not be tried either.
What possible profit could there have been to fake such n event? And the corpses of the executed? We're they fake too? As to the fact if the Nuremberg trials were fair, here one can have a say, since most of the German scientists were immediately scooped up by either the USSR or the USA