If it was made public in the local paper for instance, quite possibly j04.
Trouble is that it was not "private" was it - nobody can be fully assured they are private these days if they are in the same room as someone with a mobile phone. Unless you know them really, really well and are 100% sure you can trust them, drunk or sober.
There was a similar case round here involving Facebook, local paper, national paper, deputy head (female) not so long ago. It's called bringing the name of the school into disrepute which is a sackable offence.