I was recently given a copy of the "Gamble Report" which was presented to the Courts in October 1988. The report is fascinating summarisation of information relating to the Courts which provides a lot of background information about the legal status of the Courts as well as answers to lots of common questions such as:
what is a "presentment";
who can be Portreeve or Bailiff;
who can be a Juror;
who is the Lord of the Borough;
and who receives royal visitors?
You can read the full text of the Gamble Report and see scans of the original documents on the website...