a lot of nice answers to this thread.
i would give a Time Machine to every courthouse in the world, so the judges could go to the past and see for themselves what happened.
thus, justice would be fair, no one could lie. there would be no corruption and every one would get what deserve.
now, THAT would be awesome for the world. hopefully some day (100 years from now? 1000?) we can have it. i mean, is theorically possible to travel in time, so... who knows, right?
of course, the time machines would be modify so the judges only could see the things related to the trial, no more (we don't want to have pervert judges who travel to past to see Angelina Jolie fuckin' Brad Pitt, right?)
and they wouldn't be capable of modify the past, only watching it.
once again, we don't want to have judges who traves in time just to grab Vida Guerra's ass.