The defence is limited to what they can present during this part of the trial, they are unable to provide any additional evidence. Unless it comes from the agreed evidence from both parties.
Its why he's able to point out inconsistencies between police statements (they are usually agreed by both parties), but not add any of his own evidence that prosecution may want to argue against later.
He would have to wait until it is his turn to present, then prosecution can pick holes in his argument/ supporting evidence.
Lots of rules regarding how, and when evidence is introduced for both sides to follow. Each case will have slightly different presentations due to legal arguments that have happened before the trial has even started publicly.
I only realised yesterday that, i think they are still only running through agreed facts, they are just doing it all in one go instead of at the beginning of each individual charge. It threw me as, I've just never seen so much questioning involved in it before!
Explains why things are patchy (terrible reporting aside), and the details for the children are getting intermingled in the reporting, as they were with Child A and B
Medical evidence and the professionals who witnessed/ present them are normally accepted as agreed facts automatically. However, in this case the medical evidence and medical witness statements submitted, are partially agreed but not fully.
So, i am assuming the judge has allowed a brief cross examination to some of the medical evidence witnesses by the defence.
Due to the crossover of prosecution medical evidence which forms agreed facts and the defences specific concerns to certain parts of it.
Same with the expert witnesses, they will have been consulted during the police investigation, so have to declare their role in the investigation. Along with present the report they've prepared for the actual trial.
Normally this would be done just prior to them presenting their opinion and report findings, but defence has concerns about how the report has been put together, so want concerns noted prior to them giving their full evidence. (Not saying they are valid, just pointing out why it's been done)
The questions the defence has asked are specifically pointed towards the bits the they have issues with.
Not going to pretend I understand the full ins and outs because this trial, is literally a minefield for the legal teams involved on both sides. So for the most part I'd just be guessing. (I am just one woman bored on mat leave

)
But this is what makes most sense to me personally, but I am happy to be wrong with it.
I've pieced it together with relevant issues in this case that I know would have impacted the normal agreed facts.
Anyway hope that helps at least a few on thread who aren't sure about the court side of things, it genuinely isn't meant to discredit any opinions already stated on here, because it's just taken me a few weeks to even realise what is going on in the trial.
Again not after an argument or a debate, just adding for clarity on court room procedure and etiquette.