"Every single day in Kaitaia you have new cases come across your desk. You chip away at them, but they never end. It's just a blur. How horrid is that, when you're talking that sort of number?"
Knowler said abuse occurred across all parts of society, and she had heard all sorts of excuses.
"I've had a 65-year-old man in an interview say to me, 'Well, she was a well-developed 8-year-old'."
Knowler had heard "she came on to me" and "she's my daughter, it's my right to be the first".
"I've heard that more than once."
This week, Knowler launched a fundraising drive to boost support services for Far North victims.
She and Sergeant Marie Stratford of Manukau Police will spend about three weeks driving 3000km through India in the tuk-tuk.
She'd named their entry in the "Rickshaw Run", a rally next August with international entries, the "Chickshaw Blues".
To donate: Go to ChickshawBlues Givealittle page