Police are on the hunt for burglars who nicked firearms from South Canterbury properties and hold concerns for the safety of anyone who uses a defective gun among the loot.
Officers are probing two burglaries in Geraldine and Temuka over the last few months.
A defective firearm and fishing gear were stolen from a Geraldine property between August 6 and October 6, Acting Detective Senior Sergeant Richard Quested said.
The Temuka burglary happened between September 17 and October 10 and "a number of firearms", ammunition, a paintball gun and scuba driving gear were stolen.
"The firearm taken from Geraldine is understood to be defective and if used could result in the person holding the firearm to be seriously or fatally injured," Mr Quested said.