Jacinda Ardern says it's most appropriate that the Police watchdog looks into the response to the Parliament protest. 

Last week, Labour MPs used their majority to block a briefing from the police commissioner to the justice select committee.  

The Government wants to see the IPCA's term of reference, before it makes a judgement.  

But, former police negotiator Lance Burdett told Mike Hosking it has to be looked at holistically. 

He recommends using a retired district court judge, because they're used to seeing people from both sides - including police officers and members of the public. 

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