So you're saying that the doctor should have called the cops and the cops should have seized the child?
No, I think the doctor should have let her go "against medical advice". If they want to have a dead baby, too bad. After all, this mom could have legally aborted her just five short weeks before. I think these parents were stupid and they are likely very lucky that their infant did not have a deadly disease.
However, your comment was predicated on the statement that the doctor should have been "completely convinced" it was meningitis before recommending the spinal tap. Something that is impossible without the spinal tap.
Now you're changing the argument! Not brilliant!