Don't forget the reverse. If your DNA's an insufficient match to your children, they take your kids away.

https://womenherald.com/health/the-chimerism-case-how-lydia-...

This is a really interesting article, even though it seems a little biased towards the mother (which, post hoc, if absolutely fair). Would be very cool to see / read this from the position of the judge as the thing unraveled.