Actors at rehearsals for The Woman on Trial

The judiciary, by definition, is a justice-delivery mechanism that relies entirely on facts and evidence to reach a conclusion. The moral standing of a judge or jury member is supposed to play no part in a trial. But, is this always the case? Do the keepers of the law adhere unwaveringly to rulebooks? Or are they, like other mere mortals, prone to letting societal drawbacks like class divides and gender bias colour their judgment?