[Teacher317]

There was no malicious act performed.
Right. Dumping a flash bang in a crib is not malicious, just an accident.

A parent who stored similar explosives in their infant's room would likely have CPS take the child away and get charged with negligence.

[DuncanWaring]

A parent who stored similar explosives in their infant's room...

Anyone, parent or not a parent, who stored similar explosives without a "destructive device" permit from the ATF would be looking at years in the graybar hotel and a six-figure fine.