Tents, timers and hydroponics: how a few cannabis plants becomes an enhanced indoor cultivation charge in NSW
Almost nobody who ends up charged with cultivating cannabis in NSW set out to become a commercial grower. The usual story is far more ordinary: a few plants in a spare room, a cheap grow tent bought online, a light on a timer, and a genuine belief that growing your own for personal use is somewhere near the bottom of the seriousness scale.
The law does not see it that way, and the reason catches people badly. NSW does not simply count plants. It looks at how they were grown, where, and for what purpose – and a setup that a grower would describe as basic can convert an offence with a two-year maximum into one carrying a decade or more.
The basic offence
Cultivation offences sit in the Drug Misuse and Trafficking Act 1985 (NSW)). Section 23 makes it an offence to cultivate, or knowingly take part in the cultivation of, a prohibited plant. Cultivate is defined broadly and includes sowing or scattering seed, planting, growing, tending, nurturing or harvesting.
Note what that definition captures. Watering someone else’s plants is tending. Adjusting a light cycle is nurturing. Cutting and drying is harvesting. A person who did not own the plants, did not buy the equipment and had no financial interest can still fall squarely within the section – which is why housemates, partners and visitors are so frequently charged alongside the person who set the operation up.
Seriousness escalates by quantity, using the thresholds in Schedule 1: small quantity, indictable quantity, commercial quantity and large commercial quantity. For cannabis plants the thresholds are measured in plant numbers, and the maximum penalties climb steeply as you cross each one. Matters at the lower end can be dealt with summarily in the Local Court; commercial and large commercial matters are strictly indictable and go to the District Court.
Enhanced indoor cultivation: the provision that changes everything
This is the part that surprises people. Section 23A creates separate and more serious offences for enhanced indoor cultivation of prohibited plants.
The concept has three elements, and only one needs to be present. Cultivation is enhanced indoor cultivation where it occurs inside a building or structure and involves the nurture of the plant in nutrient-enriched water with or without mechanical support, or the application of an artificial source of light or heat, or suspending the plant’s roots and spraying them with nutrient solution.
Read that again with a spare bedroom in mind. A grow light is an artificial source of light. A heat mat is an artificial source of heat. Hydroponic buckets are nutrient-enriched water. The tent, the fan, the timer – the entire standard kit sold openly online – is precisely what the section describes. There is no requirement that the setup be sophisticated, expensive or commercial in scale.
The consequence is stark. The same number of plants grown in a backyard and grown in a wardrobe under a lamp attract different offences with different maximum penalties. And section 23A goes further again where the cultivation is for a commercial purpose, and further still where a child is exposed to the cultivation process or to substances stored for use in it – a circumstance that arises constantly in family homes and which prosecutors treat very seriously.
How the prosecution proves commercial purpose
Where the number of plants is below the commercial threshold, the fight is usually about purpose. The prosecution does not need a buyer or a sale. It builds the inference from the surrounding picture.
The material typically relied on will be familiar to anyone who has read a police fact sheet: the scale of the setup and its cost, the presence of scales and packaging, cash in the house, tick lists or notes, messages on phones, the volume of dried material relative to any claimed personal use, multiple grow stages suggesting a rolling harvest, and modifications to the premises such as ducting, blacked-out windows or altered wiring.
Each of those is answerable. A large light and a good fan reflect what is sold as a starter kit, not commercial ambition. Scales in a house are equivocal. Cash has explanations. A single harvest cycle for a heavy personal user produces more material than most people assume. The work of the defence is to test each inference rather than allowing the accumulation to speak for itself – which is exactly the same discipline required in larger operations, as we set out in our article on what joint enterprise charges mean for everyone caught up in a drug operation.
What usually gets charged alongside
Cultivation charges rarely travel alone. A search that finds plants almost always finds dried cannabis, and that produces a possession charge, or a supply charge where the quantity exceeds the traffickable threshold. Deemed supply is a serious step up, moving the maximum from two years to fifteen, as we explain in our article on the difference between having drugs and being a supplier. Where there is evidence of repeated supply, ongoing supply may be alleged – an offence we cover in our article on supply on an ongoing basis.
Where the premises are alleged to have been used for drug activity, the drug premises provisions in Part 2B can be engaged, including the provisions dealing with possession or presence of prohibited plants on premises. Cash and assets attract proceeds of crime attention. And electricity bypassing, where alleged, brings its own charges and its own aggravating character, because it is treated as both dishonesty and a fire risk.
Police also have powers of seizure and destruction in relation to cannabis plants under the enforcement provisions of the Act), which is why the physical plants are usually gone long before the hearing and the case proceeds on photographs, counts and certificates.
Where the defences are
The search itself is the first place to look. Cultivation cases almost always begin with a warrant, and the validity of the warrant, the grounds on which it was obtained, and whether entry and search complied with the Law Enforcement (Powers and Responsibilities) Act are all examinable. Where the search was unlawful, exclusion of the evidence is available under section 138 of the Evidence Act.
Then knowledge and participation. Section 23 requires cultivation or knowingly taking part in cultivation. A person living at an address where someone else grows plants is not automatically a cultivator, and the prosecution must prove knowledge and involvement rather than mere presence – the same analysis we set out in our article on how police prove knowledge and control when drugs are found in someone else’s house.
Then the counting. Plant numbers determine which threshold applies, and the difference of a single plant can change the jurisdiction and the maximum penalty. What counts as a plant, whether cuttings and seedlings were properly counted, and whether dead or non-viable material was included are all legitimate issues. Certificates and photographs can be challenged.
Then purpose. Establishing personal use where that is genuinely the position is often the single most valuable outcome available, because it keeps a matter in the Local Court and out of the commercial range.
Medicinal use, dependence and mental health
Many people charged in this area are growing to self-medicate for chronic pain, PTSD or anxiety, sometimes after being unable to afford or access a lawful prescription. Growing your own is not lawful in NSW regardless of the reason, and a medicinal motivation is not a defence.
It is, however, powerful mitigation, and it can open other doors. Where a diagnosed condition contributed to the offending, the mental health diversion provisions may allow a matter to be dealt with by way of dismissal on conditions requiring treatment rather than punishment, as we explain in our guide to section 32 and section 14 mental health applications. That requires a report and a treatment plan prepared properly, in advance.
If police have executed a warrant
Say nothing beyond your name and address. Cultivation interviews are conducted after the plants have been counted and photographed, and the questions are directed at establishing whose operation it was, how long it had been running, and what the material was for. An answer given to minimise – it was only for me, I have only had it a couple of months, my housemate had nothing to do with it – frequently supplies exactly the element the prosecution was missing. Our article on how the right to silence actually works explains why that is not an admission of anything.
Do not clear your phone. Deletion is recoverable and creates a separate problem. Do not discuss the matter with anyone else who was at the address, because that conversation becomes evidence.
Drug offending remains a significant and closely tracked part of NSW court volume, as BOCSAR’s quarterly recorded crime statistics and crime trends dashboard show. Cultivation matters in particular are prosecuted consistently and thoroughly.
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The distance between what a grower thinks they are doing and what NSW law says they have done is wider in this area than almost anywhere else in drug law. A grow tent and a lamp are not incidental details – they are the elements of a more serious offence. And the question of whether a crop was for personal use or commercial purpose frequently decides which court you end up in.
At National Criminal Lawyers, we defend cultivation, enhanced indoor cultivation, possession and supply charges across NSW. We know how these briefs are built, how to test plant counts and commercial purpose inferences, and how to put genuine medicinal and mental health context properly before a court.
Call us at 1800 CRIM LAW for a free consultation. Help us help you understand your situation and get you the best outcome possible.
