And this is exactly the problem with complex and / or controversial medical evidence. Lawyers are law experts and have to rely on medical experts who, if considered great for the prosecution, aren't going to be impartial, even if approached by a defence team.
My personal example - my solicitor was convinced that the radiology expert he instructed from GOSH would look at our case and see the problems with it. Unbeknownst to him until after the fact, this radiologist claimed publicly to be able to diagnose child abuse from looking at x-ray alone. Therefore based on dogma that had evolved over decades any baby presenting with metaphyseal fractures was a victim if child abuse, regardless of any contradictory evidence. Possibilities of bone disease or fragility, even if likely, did not rule out abuse, due to the nature of these fractures. The conclusion drawn was that not only were parents guilty if abusing their baby, they had abused a sick and fragile baby which doubles down on the awfulness.
In fact, this radiologist threw in a compressed vertebrae apparently missed by three other respected doctors/experts, claiming it was from either violently slamming the baby onto a hard surface, or violently bending the baby. A six week old, 5 week premature, tiny for dates baby who had no other visible signs that supported the idea, and who had passed his six week check without any concerns.
We had to submit that damning report, because family court operates differently to criminal court. We had exhausted the pool of relevant experts. Hence why, despite getting my son back who is a fairly healthy and robust 30 year old now, I am still on record as his abuser.
People really don't realise how difficult any case of this nature is to defend. Until you've been there.