On Monday 23 March 2009 at 7.50pm three offenders, one male and two females entered the Bishopdale Discounter in Leacroft Street Bishopdale.
The male was armed with a long barrelled rifle possibly a pump action shot gun which he pointed at the lone proprietor.
They demanded money and cigarettes and when they were not immediately handed over, one of the females took a container of chocolate eggs from the counter and the three fled onto Leacroft Street and are believed to have left in a waiting vehicle.
Police are concerned by the actions of these offenders as it could easily have resulted in serious injury or death to the proprietor.
Anyone who can provide information about this offence is asked to contact Detective Richard Quested at the Papanui Police Station on 3741 700.