We weren't there, but I have seen children whose parents say 'You'll get a smacked bottom in a minute" take no notice bcecause they are not in FEAR of such a thing, and I have seen children threatened with you'll get what;s coming to you in a minute" go immeiately quiet and subdued, because the threat is very real, and they are terrified. If I heard parents refer to 'a hiding' 'like the one you had earlier' and saw the children apologise and suddenly behave i would assume that they had been beaten abd were in fear of it again. 'A hiding' isn't a 'smack'. And the police say it was the woman's words and the children's reatiuon that made them follow it up.
Now, as it happens, i DON'T agree with off-duty unofficlai surveillance, and ongoing record keeping, but i would have been happy to know that an incident like that was followed up, and I bet a thread on Mn describing the incident would have had many posts saying 'call ss'.
As for the Christian Institute: one of their main beliefs is physical punishment of children and fighting any legislation by te state to interfere with parents punishing children:
"Parents are expected to exercise loving discipline over their children. As part of this most parents use physical chastisement such as smacking..... That discipline can be painful is clearly accepted in Scripture (eg Hebrews 12:7-11). However, attempts to make the administration of reasonable chastisement a criminal offence should be strongly resisted as should other moves which usurp the authority of parents."
And of course all this could have been so easily avoided had she put them in wellies and macs and taken them outdoors in the rain. I blame modern nesh-ness.