However, he said that on the whole, hunters had been pretty well behaved.
"Most hunters have been pretty happy, in general they've bagged a few birds," he said.
The duck shooting season, which began last Saturday, sees hunters throughout the country take to the wild to try and catch a few wild birds.
It lasts for about two months, although the opening weekend is the busiest part of the season.
Avid duck hunter Tim Allen said the news that a higher number of people had been caught breaking the rules was "disappointing", noting that, while the cost of a gun is often over $1000, the cost of a license is under $100.
However, he added, most people tended to obey the rules.
He said hunting had so far been "a little bit quiet", although he had caught some birds.
"I've had a reasonable time and bagged a few birds, although I do put quite a lot of time and effort into it," he said.
"There was reasonable weather throughout the week, although the weekend was a little quiet."