Kaitaia Primary School buildings were tagged earlier this week, for the fifth time since the school holidays began.
The incident provided mixed emotions for principal Brendon Morrisey though.
On the one hand he was furious; on the other he was delighted that the security cameras had caught the culprits, a boy and a girl, red-handed.
"The main tags seem to be NIKO, NASKO (the girl did that one), Dasuk and Monster One," Mr Morrisey said.
"These tags can be seen all over town. I'm sure these two in our photos aren't the only ones doing it, but they've been caught red-handed this time.