Mark Mitchell: Police Minister on the planned investigations into Christchurch shooting incident - Heather du Plessis-Allan Drive

The Police Minister says he'd never second-guess an officer's actions during a police incident. 

Multiple investigations are taking place after an officer shot two people after a domestic dispute.

An officer shot a man carrying a hunting knife, with fears he'd seriously injure a woman.

The officer then shot the woman dead, when she threatened officers.  

Mark Mitchell says he feels for the officer. 

"My thoughts go out to those police officers and their families, they have my full support. It is a police officer's worst nightmare to be placed into a situation like that."

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