Dr McGregor says a government taskforce which sat from 2007 to 2009 has come up with a solid list of recommendations, but for them to be implemented the sector needs government help and resources.
Advocates say just one per cent of sex offenders are being held to account for their actions, because of under-reporting and low conviction rates.
They say sexual violence continues to be a major social problem, and one that is taking a huge toll on New Zealand's communities.
Dr McGregor says often when people are accused they will deny it, and it will be swept under the carpet.
"Then the perpetrator goes on to abuse many other children over many, many years. That's a typical scenario and that's been happening in probably most of our communities for decades."