Drug Trafficking for Home Marijuana Cultivation: Defence

Every year, thousands of people in Spain are arrested for growing marijuana at home. What many do not know is that growing for personal use is not necessarily a crime. The line between personal consumption (not punishable) and trafficking (a serious offense) depends on factors that police and prosecutors try to simplify, but which a criminal lawyer specialized in crimes against public health can dismantle.

Personal Use vs. Trafficking: When Is It a Crime?

In Spain, the consumption of drugs is not a crime (it is only an administrative offense under the Public Safety Act). What Article 368 of the Spanish Criminal Code (CP) punishes is the cultivation, production, trafficking or facilitation of consumption by third parties.

The key lies in the quantity and purpose:

• Personal use (not a crime): Amounts compatible with personal consumption over a reasonable period (the Supreme Court uses a 3-5 day supply as a reference).
• Trafficking (a crime): Amounts clearly exceeding personal use, presence of paraphernalia (precision scales, sealable bags, loose cash) or indications of sale (messages, ledgers).

Key Quantities According to the Supreme Court

The National Institute of Toxicology sets the following average consumption doses (multiplied by 5 days = reasonable supply):

• Marijuana: Up to 100g of plant matter is considered compatible with personal consumption.
• Hashish: Up to 25g of resin.

Above these amounts, a trafficking purpose is presumed. But it is a presumption that can be rebutted.

How Many Plants Can I Have?

There is no magic number. The Supreme Court weighs the set of indicators:

• 2-4 small plants on a balcony, with proven personal use, have been repeatedly acquitted.
• 20+ plants with professional lighting, industrial ventilation and extractors point to trafficking.
• What is decisive is the estimated yield and whether it is compatible with the person's own consumption.

Was the Search of My Home Lawful?

The inviolability of the home (Art. 18.2 of the Spanish Constitution) is a fundamental right. For a search to be lawful, it requires:

1. A reasoned judicial authorization (a court order issued by the judge based on prior indicators, not just smell).
2. Free consent from the occupant (without police pressure).
3. Strict flagrancy (you are seen entering with the plants).

If they enter your home without any of these three grounds, everything found is null ("fruit of the poisoned tree"). It is one of our most effective lines of defense.

What Penalties Apply?

Marijuana is classified as a substance that does NOT cause serious harm to health, which means lower penalties:

• Basic type: Prison from 1 to 3 years and fine of one to three times the value.
• Substantial quantity (over 10kg): 3 to 4.5 years.
• If you are a habitual user: Mitigating circumstance of addiction which can reduce the sentence and suspend prison if you follow treatment.

Defense Strategies That Work

• Nullity of the search: If there was no court order or valid consent.
• Personal use: Proving your status as a habitual consumer (medical history, witnesses, consumption consistent with the estimated yield).
• Chain of custody: Challenging the weighing, drying and preservation of the substance.
• Mitigating circumstance of addiction: If you are a user, the sentence drops significantly.
• Damage repair: Depositing an amount as "symbolic reparation" to trigger the mitigating circumstance of Art. 21.5 CP.

Frequently Asked Questions

Is CBD legal?

Yes. Industrial hemp plants with THC below 0.2% are not narcotics. If your plants are CBD, there is no crime. But you need analytical proof of it.

Can I be charged for having seeds?

No. Cannabis seeds do not contain THC and their sale is legal in Spain. It only becomes a crime when the plant produces the active substance and the quantity exceeds personal use.

Does the smell of marijuana justify a search?

Not on its own. The Supreme Court has said that the smell can raise suspicion, but is not equivalent to flagrancy. Police need judicial authorization to enter based on smell alone.