The court heard that when Roberts was approximately 30-40 metres away from the fishery officer, he turned his steering wheel and headed straight towards the officer.
The officer observed that Roberts was deliberately driving towards him and had increased his speed.
The officer yelled "stop, fisheries" several times. If he hadn't moved he would have been hit by Roberts' vehicle.
In a formal interview, Roberts gave no explanation for his actions.
Ministry for Primary Industries District Compliance Manager for Poverty Bay, Tom Teneti, says fishery officers do an important job and it's very disappointing when they are targeted in this way.
"Our people are performing an important role upholding the law and ensuring the public is aware of the rules. To be threatened and put in danger for doing so is unacceptable".