Generally, I am in favour of appeals on any important decision that happens in our lives. The court system has many levels of appeal. The only instance that I know of where appeal systems are in place is in the European countries, where a person who is denied physician-assisted dying by their physician can appeal. In Belgium, the appeal rate I'm familiar with is about 30%. In other words, 30% of people who were denied by their physicians are allowed by this panel to have physician-assisted dying. I think you'd have to look at the legislation in those countries to get a better sense of how to make that operational, but, in general, I think most important decisions in our lives should be able to be appealed.
On February 2nd, 2016. See this statement in context.