In regards to jury members and their questions, specifically for JA.... Correct me if I am wrong, however my understanding is that the judge reviews the questions with the prosecution and defense. Wouldn't the questioning be more effective if only the judge reviewed the questions to make sure they were worded appropriately before she asks them without the prosecution or defense knowing the questions in advance. If the DT knows the questions in advance, doesn't that give them the opportunity to tell JA how to respond?
TIA
Both sides have to have an opportunity to lodge objections to the juror questions and have the judge rule. We don't do this in my jurisdiction so I have to rely on what I've seen, (or maybe AZlawyer can help us if I'm wrong) but it appears that the questions are argued in chambers and are thereafter put to the witness fairly quickly before the witness has much time to consult with the attorney who called them to the stand.
Of course, the credibility of any witness is always fair game and if someone appears to have had time to discuss their answer they can be asked about that.