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Drug trafficking is one of the most prosecuted crimes. Technical defense is vital to differentiate between possession for personal use (criminally unpunishable) and possession for trafficking (crime). Our strategy focuses on dismantling signs of sale: absence of weighing tools, client addiction, and nullity of searches.
record_voice_overDefense against Wiretaps
In medium and large operations, wiretaps are the main evidence. We painstakingly analyze the court orders authorizing them. If they lack sufficient motivation, they are null, and all derived evidence (drugs found thanks to them) falls.
Why Alonso Sala for Drug Defense?
The difference between prison and freedom often lies in the nullity of a wiretap or search. We take nothing for granted.
- checkSpecialists in annulling irregular wiretaps.
- checkQuestioning the chain of custody of the drugs.
- checkTechnical defense: Real purity vs Gross weight.
- checkAccreditation of addiction to apply qualified mitigating factors.
Drug Trafficking Defense in Madrid
Our firm, based at Velázquez 27 in Madrid, regularly acts in public health offense proceedings before the city's criminal courts. The vast majority of drug trafficking cases in Madrid are investigated at the Plaza de Castilla courts, where —following the reorganization introduced by Organic Law 1/2025— the former investigating courts have been integrated into the Investigation Section of the Madrid Court of Instance. The suspect's first statement and the pre-trial detention hearing both take place there: two moments that shape the entire case and where immediate legal assistance is decisive.
The trial court depends on the penalty at stake. Under Article 14 of the Criminal Procedure Act (LECrim), offenses punishable with up to five years in prison —the basic type of Article 368 CP— are tried by the Criminal Section of the Court of Instance, while the aggravated subtypes —notably significant quantity, criminal organization— are tried before the Madrid Provincial Court (Audiencia Provincial).
International drug trafficking —networks operating across several provinces or from abroad, seizures at ports and airports, investigations arising from European police cooperation (EncroChat, SkyECC)— falls under the Judiciary Act within the jurisdiction of the Audiencia Nacional (National High Court): the Central Investigating Courts handle the investigation and, depending on the penalty, the trial is held before the Central Criminal Court or the Criminal Chamber. Defending a case before the Audiencia Nacional requires specific experience with macro-proceedings, prolonged pre-trial detention and international judicial cooperation.
If you or a family member has been arrested in Madrid on drug charges, you can reach us urgently at +34 91 078 65 74 or through our contact page.
Arrested with Drugs: What to Do in the First 72 Hours
Article 520 LECrim provides that police custody may not last longer than strictly necessary to clarify the facts and, in any event, sets a maximum of seventy-two hours, after which the detainee must be released or brought before the court. Much of the outcome of the case is decided within that window, so keep these guidelines in mind:
- Remain silent at the police station. The detainee has the right to remain silent, to refuse to answer some or all questions, to state that they will only testify before the judge, and not to incriminate themselves (Article 520.2 LECrim). Testifying at the station without knowing the contents of the police report rarely helps the defense.
- Appoint a lawyer of your choice as soon as possible. It is an express right of the detainee, who must be assisted by counsel without undue delay. The lawyer also gains access to the case materials essential to challenge the lawfulness of the arrest.
- Communication. You have the right to have a relative or person of your choice informed of your detention and place of custody, and to a phone call with a third party. Foreign nationals may require notification of their consular office and free interpreter assistance.
- Make sure everything is on the record. The police report must state the place and time of the arrest and of the transfer to court. If the detention is unduly prolonged or unlawful, a habeas corpus application may be filed, which the judge must resolve within the statutory 24-hour period.
Once before the court, Article 505 LECrim requires a hearing within seventy-two hours of the detainee being placed at the court's disposal: the judge may only order pre-trial detention if the prosecutor or an accusing party requests it and, if no one does, must order immediate release. Using those hours to document community ties —home, employment, family responsibilities— and, where applicable, drug dependence under treatment is essential to argue for release on bail or provisional liberty.
How to Avoid Prison: Mitigated Subtype and Suspension for Drug Dependence
Mitigated subtype of Article 368.2 CP. The second paragraph of Article 368 CP allows the courts to impose the penalty one degree lower in view of the minor significance of the act and the personal circumstances of the offender. It is the typical route for isolated, small-quantity sales at the lowest tier of the trafficking chain. Its effect is decisive: the sentence drops to a range of one year and six months to three years in prison for substances causing serious harm to health, and six months to one year for the rest. This option is excluded where the circumstances of Articles 369 bis and 370 CP apply. With a sentence not exceeding two years and no relevant prior record, the ordinary suspension under Article 80.1 and 80.2 CP remains available.
Suspension for drug dependence (Article 80.5 CP). For offenders who committed the act because of their dependence on drugs, alcohol or other substances, the law extends the suspension threshold to custodial sentences not exceeding five years, even where the general conditions of a first offense and a two-year maximum are not met. A duly accredited public or private centre or service must certify that the convicted person is rehabilitated or undergoing detoxification treatment at the time the suspension is decided. The suspension is conditional on not abandoning the treatment until completion, although relapses are not treated as abandonment unless they show a definitive dropout. In practice, this means that even a conviction under the basic type for substances causing serious harm can be suspended if the actual sentence does not exceed five years and the rehabilitation is documented.
Other defense levers. The offender's severe addiction also operates as a mitigating circumstance (Article 21.2 CP) and even, in cases of intense impairment, as an incomplete defense. Article 376 CP allows the penalty to be lowered by one or two degrees for a drug-dependent offender who duly proves successful completion of a detoxification treatment —provided the quantity is not notably significant or of extreme gravity— and for those who actively cooperate with the authorities. After the reform of the guilty-plea agreement by Organic Law 1/2025 (Article 655 LECrim, now without a penalty cap, and the preliminary hearing of Article 785 LECrim), negotiation with the prosecution can combine these mechanisms. All of these routes require solid expert evidence —medical and psychological reports, treatment certificates— which we work to build from the investigation stage itself.
Statute of Limitations and Clearing the Criminal Record
Statute of limitations (Article 131 CP). The limitation period depends on the maximum penalty for the offense. The basic type involving substances that do not cause serious harm to health (maximum of three years in prison) becomes time-barred after five years; the basic type for substances causing serious harm (maximum of six years) and the aggravated subtypes of Article 369 CP, after ten years; and criminal organization (Article 369 bis CP) or extreme gravity cases (Article 370 CP), after fifteen years, a period that reaches twenty for the leaders, managers or administrators of the organization. Time runs from the commission of the act and is interrupted once the proceedings are directed against the suspect, so the date of each procedural step can prove decisive for the defense.
Clearing the criminal record (Article 136 CP). Once the sentence has been served, the convicted person is entitled to have their record cleared if they do not reoffend within the statutory periods: two years for sentences not exceeding twelve months, three years for other less serious sentences below three years, five years for less serious sentences of three years or more, and ten years for serious penalties (imprisonment exceeding five years, Article 33 CP). Where the sentence was suspended and final remission was obtained, the period is computed retroactively from the day after the sentence would have been served had the benefit not been granted, which considerably shortens the wait. Moreover, if the record has not been cleared once the periods have elapsed, the judge may not take those antecedents into account (Article 136.5 CP). We apply for cancellation before the Ministry of Justice as soon as it is available: a live criminal record affects future suspended sentences, immigration files and access to certain public-sector jobs.
hubDrug Crime Specializations
Criminal Organization
Defense in macro-cases with multiple accused. Challenging hierarchical structure and membership charges. Art. 570 bis CP.
International Trafficking
Import/export, containers, and National Court jurisdiction. Transnational criminal law. Art. 370 CP.
Cannabis Cultivation
Self-consumption doctrine, indoor/outdoor plantations, electricity fraud, and home search nullity.
Cannabis Clubs
Legal defense of associations and clubs. Limits of shared consumption and Supreme Court doctrine.
Sports Doping
Criminal and disciplinary defense in sports doping. Art. 362 quinquies CP. Prohibited substances and anti-doping controls.
Drug Crimes in Spain: Defence Guide for Trafficking, Possession and Cannabis Clubs
Drug offences are among the most prosecuted crimes in Spain. Articles 368-378 of the Criminal Code distinguish between drugs that cause serious harm to health (cocaine, heroin, amphetamines) and those of lesser harm (cannabis, MDMA). This distinction is pivotal — it directly determines the minimum and maximum prison sentences applicable.
Penalty Table: Drug Offences
| Offence | Article | Substance type | Penalty |
|---|---|---|---|
| Basic drug trafficking | Art. 368 | Serious harm (cocaine) | 3 – 6 years |
| Basic drug trafficking | Art. 368 | Lesser harm (cannabis) | 1 – 3 years |
| Aggravated trafficking (Art. 369) | Art. 369 | Large amounts/minors | 4.5 – 9 / 1.5 – 4.5 years |
| Criminal organisation (Art. 369 bis) | Art. 369 bis | Organised crime | 9 – 12 years |
| International trafficking (Art. 370) | Art. 370 | Cross-border/large scale | Upper half of applicable range |
| Personal possession (own use) | Not criminal | Personal amounts | Administrative fine only |
Key Defence Strategies
Own-Use Defence (Art. 368 CP)
If the quantity found corresponds to personal consumption patterns and there are no aggravating signs (scales, bags, large amounts of cash), the defence argues the substance was for personal use — not a criminal offence.
Cannabis Social Club Defence
Legally constituted cannabis clubs do not constitute drug trafficking if: membership is adult-only, closed distribution, no profit, no promotion, and quantities correspond to established consumption levels.
Challenging the 'Large Amount' Threshold
The threshold for 'large amount' (notoria importancia) is fixed by case law, not statute. Precise weighing with deduction of adulterants can bring quantities below the threshold.
Breaking the Chain of Custody
Drug evidence is often challenged on chain of custody grounds. Procedural irregularities in seizure, sealing, transfer or analysis can invalidate the forensic evidence.
Criminal Organization: Proving Role
Being part of an organisation requires stable, hierarchical structure. Sporadic cooperation or a minor role (driver, lookout) does not automatically trigger Art. 369 bis penalties.
Controlled Delivery and Police Provocation
Evidence obtained through unlawful police provocation (agent provocateur) is inadmissible. Distinguish between undercover infiltration (lawful) and provocation of an offence that would not otherwise occur.
Specific Mitigating Factors in Drug Offences
Addiction (Art. 21.2 CP)
Proven drug dependence can operate as mitigating (simple), highly qualified mitigating, or even incomplete defence, significantly reducing the penalty. Requires psychological and medical expert reports demonstrating that the addiction affected the offender's ability to understand the unlawfulness of their conduct.
Active Collaboration (Art. 376 CP)
Provides a 1-2 degree penalty reduction for the informant who supplies effective evidence to identify other suspects or dismantle the organisation. The information must be NEW, VERIFIABLE, and USEFUL. Strategic assessment is crucial before cooperating.
Shared Consumption Doctrine
The Supreme Court has defined 5 cumulative requirements: habitual identified consumers, closed premises, moderate quantity for immediate use, simultaneous consumption, and absence of profit. Failure of any one requirement converts the conduct into trafficking.
'Notoria Importancia' Thresholds by Substance
| Substance | Threshold (Pure) | Gross equivalent (approx.) | Penalty impact |
|---|---|---|---|
| Cocaine | 750 g pure | ~3–5 kg gross | 6–9 years |
| Heroin | 300 g pure | ~1–2 kg gross | 6–9 years |
| Hashish | 2,500 g THC | ~10 kg material | 1.5–4.5 years |
| MDMA | 240 g pure | ~720 pills | 6–9 years |
| Amphetamine | 90 g pure | ~300 g gross | 6–9 years |
| Methamphetamine | 15 g pure | ~30 g gross | 6–9 years |
Key Supreme Court Rulings
The Supreme Court confirms that cannabis clubs are lawful if they are genuinely closed associations, membership is strictly adult, no promotion is carried out beyond the membership, and quantities do not exceed personal consumption patterns. Any failure of these conditions may constitute drug trafficking.
The 'large amount' threshold must be calculated on the pure substance after subtracting adulterants and impurities. Gross weight is not the correct measurement. The defence should always request an independent quantitative analysis.
If police provocation created the intent to commit the offence (the accused would not have acted without the provocation), evidence is excluded under Art. 11.1 LOPJ. Mere opportunity provided by an undercover officer does not amount to provocation.
From Arrest to Trial: Key Procedural Stages
Arrest & Police Custody
Maximum 72 hours. Right to a lawyer and to remain silent. Never testify without your lawyer present.
Court Hearing (Art. 505 LECrim)
Within 72 hours. Judge decide: release, bail, or pretrial detention. Critical hearing for drug trafficking cases.
Investigation Phase
Analysis of evidence, expert reports (toxicology, purity). Period to challenge wiretaps and searches. Duration: 6-18 months.
Interim Order / Indictment
Prosecution formalises charges. Defense may request dismissal or downgrading of charges.
Oral Hearing
Trial before Provincial Court (basic trafficking) or National Court (organisation/international). Duration: 1 day to several months in macro-cases.
Expert Criminal Defense in Drug Trafficking Offenses (Art. 368 CP)
There is no fixed limit in law, but the Supreme Court uses reference tables (e.g., up to 7.5g cocaine, 100g hashish) for 3-5 days supply. If you have more, trafficking is presumed unless proven otherwise (proven addiction).
It is difficult, but possible if there is other compelling evidence (wiretaps, witnesses, police surveillance, precision scales). The drug is not the only evidence.
If the amount is small, it will be an administrative fine. If it is large or you have signs of selling (split cash, baggies), you will be arrested for a crime. Never testify at the checkpoint.
Substances that do not cause serious harm to health (cannabis): 1 to 3 years in prison. Substances that cause serious harm (cocaine, heroin): 3 to 6 years in prison.
It is not a criminal offence but an administrative infringement (Organic Law 4/2015, fine of 601 to 30,000 euros). Only trafficking (sale, distribution) is a crime. Quantity distinguishes use from trafficking.
There are no amounts fixed by law, but case-law provides guidance: cannabis up to 25g, cocaine up to 7.5g, heroin up to 3g. Exceeding these amounts creates a presumption of trafficking.
Growing for personal use is not a criminal offence. But quantities exceeding personal use, or sale to third parties, do amount to trafficking. Cannabis associations have a peculiar regime.
Their legality is disputed. The Supreme Court has convicted several for drug trafficking. Shared cultivation and distribution to members can constitute trafficking if strict requirements are not met.
An organization or gang, use of minors, harmful adulteration, a notably significant quantity, distribution in establishments open to the public, and the perpetrator being a public official.
An amount of drugs that far exceeds personal use: cannabis over 10kg, cocaine over 750g, heroin over 300g. This aggravating factor raises the penalty to the upper range (6-9 years for hard drugs).
Yes. Transporting drugs (mule, courier) is drug trafficking even if the carrier does not own the substance. The penalties are the same as for the seller.
Yes. A vehicle used to transport drugs can be confiscated as an instrument of the crime. Assets acquired with trafficking proceeds are also subject to confiscation.
It is an administrative infringement (fine of 601 to 30,000 euros under Organic Law 4/2015), not a criminal offence. The fine can be replaced with detoxification treatment if addiction is proven.
Yes. Art. 376 CP allows the penalty to be reduced by 1-2 degrees if the accused actively cooperates by providing evidence to identify other offenders or dismantle the organization.
Canine detection is an indication justifying an inspection, but it is not proof on its own. The subsequent finding of the substance and its chemical analysis are required to establish its nature and quantity.
Selling seeds is not drug trafficking (seeds contain no THC). But it can constitute a preparatory act of trafficking if it is shown they are intended for cultivation for distribution.
Retail street selling. Even if the quantities are small, each sale is an act of trafficking. Repetition can amount to a continuing offence.
Yes. Proven drug dependence can operate as a mitigating factor and even as an incomplete defense, significantly reducing the penalty. It requires psychological and medical expert reports.
Yes. A drug trafficking defense requires knowledge of the chain of custody, toxicological analysis, wiretaps and the constitutional guarantees of the proceedings.
Yes. Article 80.5 CP allows the suspension of custodial sentences of up to five years (instead of the general two-year limit) where the offense was committed because of the offender's dependence and a duly accredited centre certifies that they are rehabilitated or undergoing treatment. The condition is not to abandon the treatment until completion; relapses do not count as abandonment unless they show a definitive dropout.
Five years for the basic type involving substances that do not cause serious harm to health (maximum penalty of 3 years); ten years for substances causing serious harm and for the aggravated subtypes of Article 369 CP; and fifteen years for criminal organization or extreme gravity cases (Articles 369 bis and 370 CP), rising to twenty for the leaders of the organization.
The investigation is generally conducted at the Plaza de Castilla courts (now the Investigation Section of the Madrid Court of Instance). The trial takes place before the Criminal Section where the penalty does not exceed five years, or before the Madrid Provincial Court for aggravated subtypes. Trafficking by organizations operating across several provinces or internationally falls to the Audiencia Nacional (National High Court).
Do you need specialised legal assistance?
The judicial system is complex. We have the criminal-law specialisation and technical resources required to take on the defence.