"reasonable doubt" is about the case before the jury or judge, not about the justice system. Juries nor judges are not asked to make a determination based on the fact that juries and judges have made wrong decisions in the past.
Your standard would mean no one could ever be convicted of any crime.
I think that's exactly what both are for. And absolutely a reflection of the justice system, wherever it may be.
What better legal system can one come up with?
We're all animals living on a planet, and break serious rules.
I'd like to think we're better than just going around killing people when the opportunity presents itself.
Not saying making them suffer forever, but just never having to do whatever they want and not walk outside their confines.
Just talking about the really bad ones here.