If we accept that court cases will have a non zero error rate, what rate are we comfortable with? Court cases are irregular, judges, the jury, the experts and t

If we accept that court cases will have a non zero error rate, what rate are we comfortable with? Court cases are irregular, judges, the jury, the experts and the type of prosecution matters. Are we more comfortable with different crimes at different rates? In the US, you’re presumed innocent (in the eyes of the law) and many in cases the law can tip the balance over a technicality, such as fruit of the poisoned tree and inability to admit some evidence that would be essential in a layman’s eyes. How would a court be robust against problems such as biased experts, juries and judges? Would we be more comfortable with a lower or higher than average conviction rate? Is the problem the prisons?