The video has already received hundreds of comments from those condemning his actions and pleading with him to get off the drug.
One person wrote: "Looks hideous seeing our own on that shet!!!! Hideous even more when you don't think nothing is wrong with that crap!!!!! Pray for you to see the light and get out of that dark cloud."
Police told they Herald they have reviewed the video with local staff and have begun making inquiries into the matter.
"There is nothing positive about the use of methamphetamine," a police spokesperson said. "Methamphetamine has a devastating impact on our communities, especially our youth and vulnerable. It affects not only the person using it, but their families, friends and communities."
Earlier in the year a Police Association report said meth is more readily available than cannabis in some New Zealand towns.
"New Zealand is currently in the midst of a second wave of methamphetamine - high quality manufactured meth from China - and it is cheap. The market for this meth is now supply driven rather than demand driven, pushing the price down."
The report said drug profits also increase a gangs' reach in the community.
"With this growth comes the very real risk of serious gang violence as rival gangs do whatever they consider necessary to maintain their existing 'markets', while also increasing their spheres of influence.
"This threat of inter-gang violence is also heightened by the fact that a significant number of influential gang leaders, recently deported from Australia, are entering the game here."