Brilliant Mr Bean, brilliant.
So possible scenarios to your child floundering in a lake in your world.
1) Cops turn up, carry out risk assessment, don't have water wings with them so bugger off and leave her to drown.
2) Cops turn up, ascertain identity, on 'opt out' list so bugger off and leave her to drown.
3) Cops turn up, dive in drag her out, ascertain idenity, on 'opt out' list so throw her back to drown.