For cases like this where the judgement depends heavily on currently-unknown science, I think courts should be able to order scientific studies be done (and paid for the same as other court costs).
The study would then be commissioned by, and report to, the judge - rather than the prosecution or defence, who both obviously want to hire experts who will see everything from their point of view.
The study would then be commissioned by, and report to, the judge - rather than the prosecution or defence, who both obviously want to hire experts who will see everything from their point of view.