Wrongful conviction
Miscarriage of justice is when a lawsuit ends with a result that is unfair, or wrong. One example of this is when a person is found guilty of a crime they did not commit. Miscarriages of justice are also known as wrongful convictions. People have spent years in prison, before the error was found. The sentence can be overturned, if there's new evidence, that was not known at the time of the trial. Trials have to follow a given schema. If the t is found that police or prosecutor committed some kind of misconduct at the original trial, the sentence may also be overturned ("undone").