Agreed, Dotta, and that was very much one of Dr Hammond's points.I don't think experts that appeared in the trial should be called "Prosecution" or Defence" ones.
Experts don't "take sides"
they are professionals who are very knowledgeable about or skilful in a particular area.
And both Prosecution and Defence could cross examine them,
asking all kinds of "difficult" questions,
trying to convince the Jury to their view.
That is how I see this matter.
JMO