Police take a man into custody after the incident in Mitchell Ave. Photo: Gregor RichardsonA knife-wielding man ignited a large police response after allegedly demanding money from a pedestrian in Dunedin. A police spokesman said officers arrested a man on Mitchell Avenue in Maryhill today. About 11.20am, police received a call that a person was walking around the streets armed with a knife. The 35-year-old man allegedly pointed the knife at a passerby while demanding money. He was arrested at the scene and faces charges of assault and wilful damage.