Comment: Damned if you do, damned if you don't. 

If they  leave a child in a questionable situation and they are injured or killed, there will be hell to pay. Remove the child from a questionable situation, and Tammie may criticize the decision.

I would think it would be best to remove the child if there is any question of their welfare. It may mean that the family suffers some unnecessary mental anguish if the concerns turn out to without merit, but if a child dies, there's no way to fix that problem.