The Drug Foundation says they're all lucky to be alive.
The Kremlin denies the case is politically motivated.
"Fentanyl is very very potent and the chance of getting hurt if you do have fentanyl is very very high."
Billy Macfarlane says 62kg of meth busted at the border last week is barely scratching the surface.
"This is not overdosing, this is being poisoned."
Eleven people were hospitalised after consuming what they thought was cocaine and methamphetamine - but it was fentanyl.
"I think it's very lucky we have not seen one of those individuals die."
About two-thirds of Kiwis would prefer education, treatment and other health-based approaches instead of criminal penalties.
All four people will appear in the Kaikohe District Court in due course.
This year's Budget included a $100 million investment for a specialist mental health and addiction package.
The 2kg of P, believed to be from Mexico, had been concealed in the man's luggage.
The search warrants were carried out on Wednesday.
A 40-year-old woman faces 20 charges of supplying meth and one of selling cannabis
Here's what happened.
Laura Ingraham told viewers her theory on Tuesday night.
It's aimed at tackling substance abuse.
It's believed members of rival drug gangs would be kidnapped and held in the cells or the chamber.
"If he had a rehab bed the very first time we asked for one, it may have cut his journey shorter by years."
"We need to stop waiting until somebody needs hospital-level care treatment, or turns up in a cell before we offer them help."
Andrew Fahie was arrested in Miami for alleged money laundering and conspiracy to import cocaine.