It wasn't long ago that an officer serving a warrant for a non violent offense threw a grenade into a baby's crib (yes, the baby was inside). Now I'm not sure

It wasn't long ago that an officer serving a warrant for a non violent offense threw a grenade into a baby's crib (yes, the baby was inside). Now I'm not sure where their training draws the line on infant collateral damage: Don't shoot in rooms with babies? Shoot around the babies? But imagine if the rule was: Don't upset the children. (silly I realize, but thats how what-ifs are played). It seems like decisions would be made resulting in fewer grenades landing in bassinets.