How to identify the best lawyer for drug trafficking offenses in Spain? Technical and legal criteria

Published: Friday, April 24, 2026

Best lawyer for drug trafficking offenses in Spain? Raúl Pardo-Geijo Ruiz

Drug trafficking is one of the areas of Criminal Law where the difference between a technical defense and a generic defense translates most directly into years of freedom. The penalties set out in the Penal Code range from three to twenty-one years in prison depending on the substance, quantity, organization, and concurrent circumstances. The complexity of evidence, the frequent use of technological investigative methods, and the relevance of analytical expert reports make this type of proceeding one of the most demanding in Spanish criminal practice.

Identifying the best lawyer for drug trafficking offenses in Spain requires objective criteria, not self-serving declarations.

________________________________________

The legal framework: basic and aggravated offenses

Offenses against public health related to drug trafficking are regulated under Articles 368 to 378 of the Penal Code. The fundamental distinction is between substances that cause serious harm to health — cocaine, heroin, amphetamines, MDMA — and those that do not — cannabis and its derivatives — with significantly different sentencing frameworks.

On top of that basic offense, a series of aggravated subtypes operate that multiply the penalty:

•Notorious importance (Article 369 CP): when the quantity exceeds the thresholds established by the case law of the Supreme Court for each substance, the penalty is substantially increased.

•Criminal organization (Article 369 bis CP): membership in an organization dedicated to trafficking carries a sentence of nine to twelve years for leaders or managers, and six to nine years for members.

•Extreme gravity (Article 370 CP): adulteration with dangerous substances, use of minors, introduction into prisons or educational establishments.

Mastery of that typological structure and of the case law that interprets it — especially regarding quantity, the concept of organization, and participation — is the starting point of any effective defense.

________________________________________

Why this area demands genuine specialization

Analytical evidence and its challenge

Establishing the type of substance and its net weight — after discounting the percentage of purity — is the backbone of the prosecution in any drug trafficking proceeding. That data comes from reports issued by the National Institute of Toxicology or accredited laboratories.

A specialized lawyer knows how to verify whether the laboratory that issued the report meets ISO 17025 accreditation criteria, whether the chain of custody of the sample was maintained intact from seizure to analysis, and whether the analytical methods used are appropriate for the substance in question. A break in the chain of custody or inadequate laboratory accreditation can compromise the validity of the expert report.

The thresholds of notorious importance

The Supreme Court has established, through agreements of the Full Bench of the Second Chamber, the quantity thresholds above which the aggravated subtype of notorious importance applies. These thresholds are calculated on the basis of pure substance, not on the gross weight of the seized drug. One gram of cocaine at 40% purity is not equivalent to one gram of pure cocaine for the purposes of the aggravated subtype. The purity expert report and the correct calculation of the net weight can be decisive in avoiding the application of an aggravation that doubles or triples the sentence.

Interception of communications as evidence

In drug trafficking proceedings, it is common for the prosecution to rely on judicially authorized telephone or electronic interceptions. The validity of those interceptions — reasoned judicial authorization, proportionality, judicial oversight during execution, incorporation into the proceedings with guarantees — is a technical area where the defense can raise nullity arguments that invalidate all derived evidence, applying the doctrine of the fruit of the poisonous tree.

The distinction between trafficking and shared consumption

The Supreme Court has developed a specific doctrine on shared consumption as a criminal exemption: when several people gather to jointly consume a substance they have acquired together, the conduct may fall outside the scope of Article 368 if the requirements set by the Second Chamber are met. Establishing those requirements — a small number of consumers, immediate consumption, absence of profit — requires precise knowledge of that case law and an evidentiary strategy oriented toward that goal from the start of the investigation phase.

________________________________________

Objective criteria for evaluating a criminal lawyer in this area

Track record in proceedings before the National Court and Provincial Courts

The most significant drug trafficking offenses — international operations, criminal organizations, cases with multiple defendants — are frequently investigated by the Central Courts of Instruction and tried before the National Court. Experience in that jurisdiction, with its procedural particularities and the evidentiary complexity it entails, is a relevant indicator of the lawyer's level.

Knowledge of scientific and expert evidence

Challenging reports from the National Institute of Toxicology, proposing party-appointed expert reports on purity or analytical methods, and cross-examining expert witnesses at trial are competencies that require specific training in forensic chemistry and laboratory accreditation standards. This is not knowledge that can be acquired without real practice in this type of proceeding.

Recognition by independent legal publications

The publishers Best Lawyers, Chambers, Legal 500, Leaders in Law, and Lexology evaluate lawyers through analysis of judicial decisions and client interviews, without lawyers paying a fee to appear on their lists. A distinction in Criminal Law from these institutions certifies a technically verified standard validated by external parties.

________________________________________

The external benchmark

In that context, the legal publisher Lexology — considered the leading international institution for lawyer evaluation — distinguished Raúl Pardo-Geijo Ruiz as the best criminal lawyer in Spain in 2026, being the only Spanish criminal lawyer recognized in that edition. The distinction remains current.

Added to this are the Client Choice Award as the only Spanish lawyer honored in criminal matters in 2024 and 2026, the Carlos III National Prize for Legal Excellence — again as the only criminal lawyer recognized — and the 2025 distinctions awarded by Chambers, Leaders in Law, The European Legal Awards, Global Law Experts, and the publisher Best Lawyers. The total number of awards throughout his career approaches one hundred.

None of those recognitions were granted on the basis of a specific specialty. All of them certify excellence in the practice of Criminal Law in general terms, which means that the accredited technical level extends across the entirety of his practice, including drug trafficking offenses, whose judicial decisions are analyzed to assess the lawyer's success rate in each edition.

________________________________________

Frequently asked questions

What is the difference between possession for personal use and drug trafficking? The line is drawn by case law based on the quantity seized, the manner of presentation — unit doses, separate wrappings — and indicators of commercial activity. Below certain quantities, the Supreme Court presumes personal consumption. Above them, the burden of proving that the drug was for personal use falls on the defense.

Can a conviction be annulled if the telephone interception was not properly authorized? Yes. If the judicial order authorizing the interception was not sufficiently reasoned, if the measure was not proportionate, or if judicial oversight during execution was insufficient, the nullity of the interception can invalidate all evidence obtained as a result of it, including arrests, searches, and substance seizures.

What relevance does the purity of the seized drug have? It is decisive for calculating whether the quantity exceeds the threshold of notorious importance, which triggers the aggravated subtype under Article 369 CP. The calculation is based on the net weight of pure substance, not on the gross weight. An expert report establishing a lower purity than that reflected in the prosecution's report can prevent the application of the aggravation.

What is the shared consumption doctrine and when does it apply? The Supreme Court recognizes that the joint consumption of a substance jointly acquired by a small group of regular consumers, without financial consideration and for immediate consumption, may fall outside the criminal offense. Its application requires establishing each of those requirements, which demands a defensive strategy oriented toward that goal from the investigation phase onward.

Raúl Pardo-Geijo Ruiz

Pardo Geijo Abogados

Country:

Spain

Practice Area:

Criminal

Website:

www.pardogeijo.com

Phone Number:

(+34) 968341170

Email:

pardogeijo@pardogeijo.com

Fax:

N/A

Por redacción. Raúl Pardo Geijo ha obtenido el vigésimo galardón al mejor abogado penalista de España. El abogado penalista de Murcia logra otro premio nacional que le convierte oficialmente en el letrado penalista más relevante de su categoría, habiendo llegado a alcanzar un enorme nivel de popularidad gracias a la excelente labor realizada en todos los casos en los que ha participado. Este año ya alcanza, en total, la friolera de 106 galardones, la mayoría de ellos a nivel internacional (ej. Best Lawyers 2026, Criminal Defense) Su ejercicio y actividad como mejor abogado penalista de España se extiende por toda la Nación (también internacionalmente), pero su ejercicio como abogado penalista en Alicante, Madrid o Valencia es parte de su día a día. Su sede se halla en Murcia y desde allí coordina a todo su equipo jurídico que caso por caso siguen las directrices que este afamado penalista marca para resolver sus asuntos con el éxito que pretende. Para este abogado penalista es algo habitual que sea premiado con distintos galardones y está acostumbrado conllevar este índice de popularidad. Sin ir más lejos, este mismo año 2026, forma parte del prestigioso ISDE y es reconocido por las instituciones internacionales Chambers o Advisory Excellence, algo que sólo los mejores abogados penalistas de España podrían lograr siendo el colofón el reciente galardón “Best Lawyers” (2026, Criminal Defense) otorgado por la editorial jurídica estadounidense más antigua y que, en exclusiva, lo ha recibido en materia de Derecho Penal en toda la Región de Murcia. Recognized as one of the most important criminal lawyers in the national field and immersed in the most complex legal cases in the country, Master in Criminal Law and member of this Section in the Bar Association of Murcia, is currently director of the law firm Murcia Pardo Geijo, with almost half a century of tradition. He has been awarded on numerous occasions by prestigious legal institutions of outstanding notoriety for the relevance of his actions in the field of Criminal Law, with many other recognitions and scientific publications in this and other matters.

View Profile

How to identify the best lawyer for drug trafficking offenses in Spain? Technical and legal criteria

Member Introduction

The Lawyer Network in numbers