Whichever way it goes with Damian and contact with Jackie, she remains his mother and the negative impact on Damian, has already been immense and will be even more so, after a prison visit. My own view is that Damian needs protection first and guidance from a professional who understands 10 year-olds.
Ludo should visit Jackie, but not too soon either or it will arouse suspicion. Rather just leave her well alone until after the trial.