As far as scuba divers serving on a jury. Anyone with much experience with the issues in a jury trial cannot serve on a jury. That is because they can influence the other jurors and replace their own expertise with the testimony of the experts on the case and that would produce an unfair result. I believe that this is correct and no scuba diver should serve on the jury. It makes it a challenge for the prosecutor to educate the jurors about the issues involved, but our judicial system has functioned very well with this procedure. If I were asked to serve on a case like this, even if I didn't know anything about the specifics of the case, I would have to recuse myself.
Sorry .. I ran out of thanks. Gotta agree with you here. I wouldn't do for other people on the jury to be influenced by someone who could be no more than a "self obsessed know it all" Not saying anyone here is like that but the jury needs to start with a clean slate and the lawyers on both sides need to have the ability to ensure that they can cross examine and challenge "testimony" as needed. Can't do that when the conversation is going on with the jury sequestered somewhere!