Here is one way to narrow the jury pool; conduct background checks on all prospective jurors. That would certainly be a revelation. When it is declared you will be judged by your peers, there is no exaggeration in a good many cities. Those with genuine hands-on experience will be sitting in on criminal cases.
Canada, had made it a practice to conduct background checks on its prospective jurors. Get this. The Canadian legal system wants to be sure that prospective candidates are not lying about their backgrounds in hopes of being selected for jury duty. The process was halted last May. Try that here in the United States where everyone with any sense or not overly possessed with a great sense of civic duty is trying desperately to get out of jury duty.