It is an ancient principle of trials that jurors can only consider what evidence they hear or see in court. That is why every trial these days includes a warning against looking things up on the internet. And, that is why most judges and lawyers know they cannot comment on actual cases prior to the

Judges always tell jurors not to do their own legal research during a trial.  A jury is supposed to use the legal terms provided by the court.  Our judicial system relies on legal standards that are known to both sides, defense and prosecution.  The two sides to any trial will devote considerable time and energy