His question still applies. How many people were cited for jury service at the High Court on that date, and how many actually turned up to go into the final draw?The advice on "Jury Service in the High Court and Sheriff Court" reads simply:
The selection of the jury
Once it is known that a trial is to start, the clerk of court will draw fifteen names at random from a glass bowl containing all the names of the jurors present. If your name is called out, you should come forward and take the seat you are directed to in the jury box.
Unless good reason is given, or an objection to the balloted juror is allowed, the first fifteen jurors balloted will make up the jury for the trial.
Scotland is not the United States!