A Blenheim man headbutted a constable in a failed attempt to avoid being arrested, a court has heard. Sebastion Reginald Lang, 27, was heavily intoxicated on the night of September 16, and repeatedly shouted abuse at a constable on Main St, who eventually arrested him for disorderly behaviour. Lang refused to get into the police van and punched the constable several times in the head, before headbutting him. The constable had a mild concussion and bruises to his head. Lang admitted resisting police and aggravated assault on police at the Blenheim District Court on Monday. His lawyer Kent Arnott said alcohol was a factor and Lang had since started alcohol and drug counselling. Judge Tony Zohrab said Lang had a long history of alcohol-fuelled offending. He ordered a drug and alcohol report and for Lang’s home to be assessed for home detention. Lang was remanded on bail to November 13.