Been there, done that, at least two times, maybe three. Everytime, one of the defense lawyers asked prospective jurors to stand up 1) if they had been to college but did not graduate, 2) if they graduated college, or 3) if they had gone to school beyond a bachelor's degree. After counting noses, all those standing were excused from serving on the jury. I left before they could change their minds. So did roughly 50 others. They were not interested in jurors who were educated beyond high school.
I have been there as well several times.
I have also given evidence as an expert witness several times. You have to use very simple language and really simplify complex issues and use no long words. You have to keep sentences short and simple.
I was lucky, as when I was a student at Guys Hospital Professor Sir Keith Simpson was chair of forensic pathology. He had many famous cases and put away some notorious criminals. He was also a lawyer. His autobiography, "Fifty Years of Murder" is a great read. Anyhow he used to have a course on giving evidence in court.
His post mortems usually, in the noon hour, were well attended. He did cut an eccentric figure. He always turned up in a dark three piece suit with two gold watches and chains in his waist coat and black Bowler hat. He would arrive, take off his suit coat, don his while lab coat, but keep on his bowler hat through out the proceedings!
He had an excruciatingly funny dry and wry sense of humor. I guess the word droll best described his demeanor.