But people who do witness incidents need to report them straight away.
The central city hub has been plagued by reports of violence and disorder, particularly among youths, in recent months.
Senior Sergeant Craig Dinnissen previously said some schools had taken to sending people there to keep an eye on their pupils.
Issues he had been told of included youths being drunk, getting into fights, huffing aerosols, bullying, and generally being intimidating. Officers did patrol the area to see what was happening, but as soon as they left, "they kick back off".
Yesterday, he said, some offenders had been identified and they were being dealt with by Youth Aid.
It was not a war zone, he said. Rather, there was a group of juvenile offenders who were being identified and action was being taken against them.
A lot of commentary and information was being shared across social media platforms, and he urged people to report anything relevant to police.
People who witnessed incidents should also report them straight away, he said.
