There are too many cases when judge's verdicts were incorrect.for example there are people who spent 5-10 years in jail,but than they' proved their guiltlessness. We have no right to take away someone's life!! Death penalty is nonsense. when they do it they become criminals too. remember that there is prison,wich is hell on earth.
Nowadays, the science and technology has advanced so much that faking charges against someone is getting almost impossible. But obviously, there will be a few rare occasions in which innocent people are convicted of crimes which they didn't commit. And I agree with your viewpoint on the prisons. A prison is a place where a human being is reduced to the status of a street dog.