It comes ahead of the Government extending the law to all public places.
Police say there are still a number of unanswered questions.
She was reported missing on Saturday, March 23.
"We are determined to hold those responsible to account."
It happened during a car show earlier this month.
Emergency services were called to the scene just before 6pm on Thursday.
"Glass went flying everywhere".
The major route is now closed between Ward and Kekerengū.
A postmortem of the body was conducted on Thursday morning.
There is no ongoing risk to residents.
Police say one person has been taken into custody.
Police use more than 20 cloud systems with private tech firms.
"The poor little girl down the road didn't have to die."
He is expected to appear in the Gisborne District Court on Wednesday.
It comes as police separately arrested three men in a different shoplifting case, who stole $750 worth of meat at the weekend.
Foreign Affairs Minister Winston Peters said New Zealand supports the "rule of law and due process".
Two people were killed and three others injured in a 100-person brawl at the weekend.
Detective Inspector Dave de Lange spoke on Monday.
Police believe the injuries were inflicted deliberately.
More than 20 chocolate bars and a dozen ice creams were recovered by Police.