I’m wondering if we’re getting the whole story here.

I’d have to go through the legalisms involved in turning a psychotic 6yo over to Law Enforcement, whether that is legally an “arrest” (did they Mirandize her too?) and does the Cop have any options other than cuffs to safely restrain that kid.

"...if the gentlemen of Virginia shall send us a dozen of their sons, we would take great care in their education, instruct them in all we know, and make men of them." Canasatego 1744