The man was arrested and charged with threatening behaviour likely to cause violence.
He was also held in custody over the weekend and appeared in court on Monday, when he pleaded guilty, was convicted and received a $250 fine and costs.
Two female members of the family, aged 45 and 15, were also arrested after an altercation at Kaikohe police station.
The 45-year-old woman was charged with obstruction and was released on bail to appear in court on March 19.
The teenage girl was released without charge for an alleged assault on police and has been referred to the police Youth Aid section.
Mr Milne said police wanted "the good people of Kaikohe" to know that if they had a problem they could contact police, who would take positive steps to protect them from intimidation.