A man accused of trying to enter a Christchurch Work and Income office with a gun and letting off a shot outside, also threatened to kill Winz workers, police are now alleging.
Mitchell Shane Moulton, 32, allegedly went to the Linwood office just before 8.45am on October 6.
He allegedly threatened security guards before fleeing the scene.
The police armed offenders squad was called out and he was later tracked down by police, officers said at the time.
Last month, he appeared at Christchurch District Court charged with possession of a firearm, letting off a shot, and possession of cannabis.
Moulton, of Aranui, was due back in court today.
Police have now laid three new charges of discharging a sawn off .22 rifle with reckless disregard for the safety of others, threatening to kill a named Work and Income New Zealand worker along with other staff, and driving on a suspended license.
Moulton is remanded in custody, without plea, and will next appear via audio visual link on November 19.