How do the justice systems in capitalism and socialism differ?

Surely justice is supposed to do exactly what it says on the tin ! The shape & size of the tin doesn't matter. If it ain't right it ain't Justice. Similarly the system that any jurisdiction uses is irrelevant to the question: Justice is about fairness & balance. If the jurisdiction does not arrive at a fair & balanced result then justice is denied. I can see no other outcome irrespective of the political system. Justice is beyond political influence, if it is not then justice it is not.