Although the St Kevin's College school ball went off without a hitch on Saturday night, a 16-year-old male and a 17-year-old male were given pre-charge warnings for disorderly behaviour for fighting in Centennial Park after the ball afterparty at 3.30am on Sunday, Senior Constable Bruce Dow said.
Letterboxes were also damaged and in some cases destroyed, in Taward, Balmoral and Fleet Sts following on from the afterparty, and a vehicle parked in Sandringham St had a wing mirror ripped off it on Saturday night, he said.
Six plants that had only just been planted at the Iona Home and Hospital in Thames St were also ripped up, he said.
''This is incredibly disappointing as the home has just undergone major renovations and the plants were planted for beautification purposes and now some clown has decided they are better off elsewhere.''
Most of the damage was suspected to have occurred as a result of the ''aftermath'' of the post-ball party, Snr Const Dow said.
''Police seek help to identify any of the perpetrators of the damage that has occurred on Saturday night/Sunday morning with the view to holding them to account for their actions.
''In the case of the letterboxes, one victim was an 89-year-old widow and she does not deserve this treatment.''
St Kevin's acting principal Kerry Ryan said there had been no trouble at the official school ball, which finished at midnight and had been a ''highly controlled'' non-alcoholic event.
''It's a no-alcohol ball. We breathalyse all our students before they arrive and there is no uncertainty in their minds that if they did have alcohol on their breaths they will not be allowed in.
''We use police breathalysers, and every pupil is breathalysed before they are passed in, and we reserve the right to randomly test them throughout the ball as well. In the last three years since we started doing that rigorously, we have had no incidents at the ball whatsoever.''
About 200 pupils and teachers attended the ball, which ''went off swimmingly'', Mr Ryan said.
However, the afterparty had nothing to do with the school, he said.
''Once the pupils have left us, it's back to their guardians.''
