The day after the Government announced the removal of most vaccine mandates, the police watchdog has confirmed it will investigate the three-week long anti-mandate protest on Parliament grounds.
The Independent Police Conduct Authority (IPCA) says 1900 separate complaints were made - more than it has ever received in relation to a single event.
It was mandate-fueled mayhem - the 23-day occupation of Parliament grounds that ended in a violent clash between police and protestors.
The IPCA review will examine police intelligence - including whether or not that intelligence was sufficient - as well as police engagement with iwi, protestors, businesses, other agencies and the Government.
It will also look at command and control, including decision-making, the tactics used and their timeliness, the powers police used, and how police balanced the rights of protesters with the rights of other people.
On Monday, the Prime Minister said the IPCA was the best-placed organisation for an inquiry.
"If you want to have an independent look at what happened, you would seek someone who is able to provide that independent voice and that would be the IPCA," Ardern said.
But there are areas the inquiry won't touch. It will not look at any other protests that occured away from the main occupation of Parliament, nor will it consider the spread of misinformation and disinformation.
Political or socio-economic motivation of complainants is outside the scope, as are complaints relating to other protest sites - they'll be looked at through the normal IPCA process.
Each of the 1900 complaints made - some by people who didn't actually attend the protests - will be triaged to determine themes. Separate investigations will be launched into those that warrant it.
The IPCA has the authority only to investigate police actions - so it won't be able to make determinations around whether the right calls were made by others, like Parliament's Speaker Trevor Mallard, who blasted protesters with sprinklers and 'Baby Shark'.
The Prime Minister on Monday didn't rule out further inquiries.
"If there are areas where we know that there is a greater public interest that we have a greater understanding and have a look into."
Don't hold your breath for a quick resolution because the review is expected to take a whole year.
