The use of cannabis in New Zealand is regulated by the Misuse of Drugs Act 1975, which makes unauthorised possession of any amount of cannabis a crime. Cannabis is the fourth-most widely used recreational drug in New Zealand, after caffeine, alcohol and tobacco, and the most widely used illicit drug. In the population of more than four million, 13.4% of those aged 16–64 use cannabis. This ranks as the ninth-highest cannabis consumption level in the world.
From 18 December 2018, the Misuse of Drugs act was amended by the Misuse of Drugs (Medicinal Cannabis) Amendment Act 2018 (2018 No 54) allowing for much broader use of medical marijuana, making the drug available to terminally ill patients in the last 12 months of life.
On 18 December, the Labour government announced a nationwide, binding referendum on the legality of cannabis for personal use, set to be held as part of the 2020 general election. On 7 May 2019, it announced that the referendum would be a yes/no question to enact a yet to be created piece of legislation. Despite an election commitment from the government that the referendum would be binding the act will need to be passed like any other piece of legislation with a vote; therefore, the government is not, in fact, bound to the results of the referendum.
Among Britain's colonies, New Zealand was one of the few areas where the United Kingdom did not encourage extensive industrial hemp production, as the native harakeke plant could instead be used for fibre. In 1927, New Zealand passed the Dangerous Drugs Act, whose schedule listed, among other controlled drugs:
Indian hemp—that is, the dried flowering or fruiting tops of the pistillate plant known as Cannabis sativa L. from which the resin has not been extracted, and
- (a) Resin obtained from Indian hemp;
- (b) Preparations of which the resin from Indian hemp forms the base; and
- (c) Extracts and tinctures of Indian hemp.
Cannabis continued to be used as a prescription medication. In accordance with its international obligations under the 1961 Single Convention on Narcotic Drugs, New Zealand passed the Narcotics Act in 1965, which banned a number of drugs, including cannabis.
Recreational cannabis use was rare in New Zealand for most of the 20th century, with one scholar noting 1967 as a watershed point where demand for cannabis boomed among "musicians and university students".
Cannabis is the most widely used illegal drug in New Zealand and the fourth-most widely used recreational drug after caffeine, alcohol and tobacco. The usage by those aged between 16–64 is 13.4%, the ninth-highest level of consumption in the world, and 15.1% of those who smoked cannabis used it ten times or more per month. According to a UN study usage by 15- to 45-year-olds in 2003 was about 20% and this dropped to 17.9% in 2010.
A 25-year longitudinal study of "1000 Christchurch born young people between the ages of 15–25" concluded that "regular or heavy cannabis use was associated with an increased risk of using other illicit drugs, abusing or becoming dependent upon other illicit drugs, and using a wider variety of other illicit drugs". The lead author of the study, David Fergusson, stated:
Cannabis use is controlled by the Misuse of Drugs Act 1975. Possession of any amount of cannabis is illegal. The maximum penalty for possession of cannabis is imprisonment for a term not exceeding three months or a $500 fine, although section 7(2) of the Misuse of Drugs Act 1975 contains a rebuttable presumption against imprisonment in respect of possession offences in respect of class C controlled drugs, which include cannabis. Cultivation of cannabis carries a maximum penalty of seven years' imprisonment. Selling cannabis, offering to sell or supplying cannabis to a person under the age of 18 years carries a maximum penalty of eight years' imprisonment. Cannabis oil and hashish are defined as class B drugs, and those convicted of manufacturing or supplying face a maximum penalty of 14 years' imprisonment. Possession of a class-B controlled drug carries a maximum sentence of up to three months' imprisonment or a fine not exceeding $500.
Anyone caught in possession of at least 28 grams (1 ounce) of cannabis or 100 cannabis joints is presumed to be a supplier, unless the defendant can prove they are not. In R v Hansen , a majority of the Supreme Court held that this presumption was inconsistent with section 25(c) of the Bill of Rights Act because it violates the right to be considered innocent until proven guilty. They also held that it was not a justified limitation under section 5 of that Act, but the presumption remains effective regardless of this inconsistency. Cannabis is a class C drug, of which the penalty for dealing can result in a maximum prison sentence of eight years under the Act. There have been many public campaigns to decriminalise cannabis but so far none have succeeded. It is generally accepted that the usage rate is high and possession in small quantities may not often be prosecuted. In some cases first offences may result in a formal warning and confiscation by police.
The Aotearoa Legalise Cannabis Party has stood candidates since the 1996 general election. They won 1.66% of the party vote in that election, the largest proportion in its history. The party has never won an electorate seat, without which they must receive at least 5% of the party vote to be represented in parliament.
In 2006, Green Party MP Metiria Turei's Misuse of Drugs (Medicinal Cannabis) Amendment Bill was drawn from the member's ballot. The purpose of the bill was to amend the Misuse of Drugs Act so that cannabis could be used for medicinal purposes, and to permit the cultivation and possession of a small amount of cannabis by registered medical users or a designated agent. The bill received a conscience vote at its first reading in July 2009, and was defeated 84–34. All MPs in the ruling National Party voted against the bill, as did the sole members from United Future and Jim Anderton's Progressive Party; while all members from the Green Party and ACT voted in favour of the bill (other than ACT MP Roger Douglas, who did not vote). The vote was split from MPs in the opposition Labour Party and the Māori Party.
In March 2016, New Zealand's Associate Health Minister Peter Dunne has said that he would support policy change regarding medical marijuana if it is proven to be effective in treating illnesses. This, along with the seasonal shortage of cannabis that has been intensified by multiple police raids on cannabis crops, has put New Zealand's cannabis policies in the political spotlight locally. There have been talks of policy change among government officials, and multiple MPs do support policy change, but as of yet there have been no actual plans made to change New Zealand's laws around cannabis. NORML NZ is currently the predominant organisation pushing for a change, but support from a large proportion of the public exists. A poll carried out by the research company UMR surveyed 1750 New Zealanders, and the results concluded that 71% of the people surveyed supported the idea of a medicinal marijuana regime in New Zealand.
In December 2016, the Green Party said that if it formed a government in the 2017 election it will legalise cannabis. 'Under its proposal, people would be able to legally grow and possess marijuana for personal use'. The party would also 'urgently amend the law so sick people using medicinal marijuana were not penalised'. In the formation of the Sixth Labour Government in 2017, the Greens leveraged a cannabis referendum, to be held before the expiration of the 52nd New Zealand Parliament in 2020.
On 11 December 2018, the House of Representatives passed the Government sponsored Misuse of Drugs (Medicinal Cannabis) Amendment Act 2018, which received royal assent on 17 December 2018. From 18 December 2018, terminally ill patients have been able to lawfully consume cannabis for medicinal purposes.
On 18 December, the Government announced a nationwide, referendum on the legality of cannabis for personal use, set to be held as part of the 2020 general election. Contrary to the pre election commitment of the Government the results of this referendum are not binding and the passage of the legislation will require a majority vote in parliament.
At least four people have died while policing cannabis in New Zealand. Detective Travis Hughes and Christopher Scott were killed when their Cessna 172 crashed in Central Otago while on cannabis reconnaissance. Detective Tony Harrod died falling from a helicopter sling recovering plants in Taranaki.
During the 2009 Napier shootings, Jan Molenaar fired on three police officers executing a cannabis search warrant, killing Senior Constable Len Snee. People who knew Molenaar described a long-standing, tense relationship between him and the police surrounding the legality of his cannabis involvement, saying, 'Molenaar believed his home was being watched and told friends he was determined to "go out in blaze of glory" if police came to arrest him', and, 'police knew who Molenaar was and knew what he would do in a situation'.
A notable case involving cannabis growing equipment was the prosecution of the owner and general manager of the Switched on Gardener stores following a series of arrests and raids in 2010.
|Offence category||Year ending 31 December|
|Import or export cannabis||16||17||13||40||11|
|Deal or traffic cannabis||2,031||2,094||3,015||1,499||1,602|
|Manufacture or cultivate cannabis||2,425||2,046||2,058||1,553||1,442|
|Possess and/or use cannabis||9,282||8,086||7,398||5,525||5,371|
|Other cannabis offences||4,360||3,814||3,298||2,160||2,061|
|Total cannabis offences||18,114||16,057||15,782||10,777||10,487|
|Total illicit drug offences||22,929||20,742||20,682||15,553||16,029|
Approved cannabis-based pharmaceuticals can be prescribed by a specialist doctor, but requires patients to meet strict criteria. As of April 2016, only Sativex is approved for use in New Zealand; it is not subsidised, so patients must pay the full retail cost. Unapproved cannabis-based pharmaceuticals (e.g. Cesamet, Marinol) and non-pharmaceutical cannabis products can be approved on case-by-case basis by the Minister of Health. On 9 June 2015, Associate Health Minister Peter Dunne approved the one-off use of Elixinol, a cannabidiol (CBD) product from the United States for a coma patient, and on 4 April 2016, he approved the one-off use of Aceso Calm Spray, a non-pharmaceutical-grade CBD cannabis-based product for a patient with a severe case of Tourette syndrome. These two cases are the only ones to this date to have been approved by the Health Minister.
The New Zealand Medical Association (NZMA) supports having evidence-based, peer-reviewed studies of medical cannabis. In 2010 the New Zealand Law Commission made a recommendation to allow for its medical use. The NZMA, which made submissions on the issues paper, supports the stance put forward by the Law Commission. GreenCross New Zealand was the first legally registered support group fighting for patient rights to access cannabis as medicine; however, this group is now defunct due to not filing financial statements. As of September 2017 the only explicitly medical advocacy group is Medical Cannabis Awareness New Zealand (MCANZ) a registered charity dedicated to legal access for patients now, and is mildly successful with the non-pharmaceutical route, having introduced Tilray for a small number of patients thereby allowing NZ stocks to be held.
In December 2017, it was announced that medicinal use will be legalised, in order to "ease suffering" for those with "terminal illnesses or chronic pain". Those qualified to receive prescriptions will be able to purchase medicinal cannabis from licensed pharmacies. Additionally, the terminally ill who are found to possess cannabis without a license will not be prosecuted or penalised. Minister of Health David Clark stated that "the compassionate measure legalises what some people are already doing, and will ensure no prosecutions while the new prescribing framework is set-up." The particulars were to be discussed in the future.
In August 2018 Hikurangi Cannabis became the first New Zealand company to be issued a license to cultivate cannabis for medical purposes.
A medicinal cannabis industry body, the New Zealand Medical Cannabis Council was established in September 2018.
The Misuse of Drugs (Medicinal Cannabis) Amendment Act was passed on 11 December 2018 and received royal assent on 17 December. It gives patients in palliative care the right to possess and use cannabis while also providing them with a defence to possess and use even illegal cannabis. A de facto limit of 28 grams or 100 joints applies due to the presumption of supply provision, which remains unchanged. Furthermore, the new law also facilitates manufacturing of medicinal cannabis products for local and international markets, which is hoped to be a viable economic avenue for deprived Māori communities to turn the "thriving illegal industry into a thriving legal one."