Miscarriage of justice is when a lawsuit ends with a result that is unfair, or wrong. Miscarriage of justice is also applicable when one is prevented or prohibited from filing one or many lawsuits, is threatened, bullied, denied due process, abused, denied a lawyer, permitted no council, denied the opportunity to file a criminal report or get a restraining order, or is in an environment where the entire legal system prevents impartiality (such as an inability to have a fair jury, or a judge which is not biased (for example, sleeping with a prosecutor on a case could lead to bias, or being a huge fan of a video game (such as The Sims) and finding a developer on that game before them as a defendant)).
Miscarriage of justice also is applicable in the case of a different person getting a settlement some other person deserves, in a civil or criminal case, while the actual victim gets mistreated or ignored or used by the prosecution, defense, legal system, etc., with no recourse or justice themselves (a sort of double injustice).
One example of a miscarriage of just ice is when a person is found guilty of a crime they did not commit. These 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 it is found that police or prosecutor committed some kind of misconduct at the original trial, the sentence may also be undone.
The following can contribute to a wrongful conviction:
In our collateral review jurisprudence, the term 'miscarriage of justice' means that the defendant is actually innocent.[permanent dead link]
A grossly unfair outcome in a judicial proceeding, as when a defendant is convicted despite a lack of evidence on an essential element of the crime. — Also termed a failure of justice.