The basic idea would be that you identify what decisions along the way can be appealed to that tribunal. The tribunal would be independent, and it would hear appeals from anyone who has an interest in the process, and it would be an expedited process. It would develop rules of procedure. I don't think it's complicated to set it up. The key issue is to ensure its independence and to identify what decisions can be appealed to that body.
On April 26th, 2018. See this statement in context.