Undercover Agents and Entrapment: Offering to Get the Drugs out of the Airport Is Not Incitement

Spanish Supreme Court Judgment 492/2026 of 10 July (appeal 10578/2025) decides the appeals of five people convicted of a drug trafficking offence involving substances that cause serious harm to health, aggravated by the significant quantity, together with membership of a criminal group. The drugs arrived at a Spanish airport in checked suitcases and an undercover officer had offered the suspects help in getting them out. The central question was whether that offer turned the operation into entrapment. The Supreme Court says it did not, but its reasoning marks precisely where the line lies, and it also acquits one defendant on a different evidential issue.

If you are accused after an undercover operation: what it means and what happens next

The undercover agent is regulated by Article 282 bis of the Criminal Procedure Act for organised crime investigations: the investigating judge, or the prosecutor with immediate notice to the judge, may authorise police officers to act under an assumed identity, acquire and transport the proceeds of the offence and delay their seizure. Paragraph 5 of the same article exempts the officer from liability for conduct that is a necessary consequence of the investigation, provided it is proportionate and does not amount to incitement to commit an offence.

For someone arrested in such an operation, the relevant question is not whether the police used deception, which is inherent in infiltration, but whether the criminal intent originated with the suspects or was created by the officers. Judgment 492/2026 provides the method for answering it and makes clear which facts weigh on each side.

The case: suitcases of cocaine and an officer offering to help

According to the findings of fact, an undercover officer met one of the suspects, who already had the flight details and the description of the suitcases carrying the drugs from South America. The officer offered to get the suitcases out of the airport. According to the appeal itself, the first suitcase was collected by the police and the officer made its delivery conditional on the arrival of the remaining shipments. The operation ended with the arrest of those involved and the seizure of more than twenty-one kilos of the substance.

The appellant argued that, without the officer, the transport and collection operation would never have been planned or started, that the police controlled the drugs at all times, and that entrapment therefore deprived the evidence of any basis and neutralised the mental element of the offence.

The Supreme Court’s test: essentially passive investigation versus incitement

The Chamber starts from a definition: police incitement occurs when officers do not confine themselves to investigating criminal activity in an essentially passive way, but exert such influence on the person as to incite an offence that would not otherwise have been committed, in order to obtain evidence. Following the case law of the European Court of Human Rights, it distinguishes two levels of analysis.

At the substantive level, the question is whether the offence would have been committed without the authorities’ involvement. Two factors are considered: the reasons for the undercover operation, in particular whether there were objective suspicions that the suspects were involved in criminal activity or predisposed to commit the offence; and the officers’ conduct, that is, whether their influence was decisive.

Applying this, the Court identifies clear signs of a pre-existing structure: several people taking part almost simultaneously in the collection, frequent movement in different vehicles, prior contacts with suppliers in the country of origin, dates and methods of shipment decided solely by the suspects, and a division of roles typical of an organisation. The officers did not arrange the purchase or dispatch of the drugs; they merely led the suspects to believe they would help with transit once the drugs reached the airport. That offer, although it assisted the plan, did not incite a more serious offence than the one the suspects were already prepared to commit. In the Chamber’s words, the officer’s practical cooperation often reflects the demands of the infiltration plan itself, and there is no entrapment if the suspects retain their own freedom to act unlawfully.

Proving entrapment: who must establish what

The second level is procedural, and it is the one that matters most to the defence. The judgment sets out three requirements:

• The entrapment claim must be examined adversarially and in a complete and conclusive manner.
• The defence must have access to the evidence and be able to question the undercover officers and any other witnesses who can speak to the incitement.
• The prosecution must prove that there was no entrapment, provided the defence claim is not wholly improbable; according to the European case law cited, this will often be the case where there was neither formal authorisation nor supervision of the operation.

The standard requires the court to rule out, with a sufficient degree of certainty, that the officers incited the offence. Here, the defence teams were able to question the officers without restriction and to access the whole case file, and the evidence showed that the intention to offend arose from the suspects’ own free decision. Had the conclusion been otherwise, the consequence would not be the mere exclusion of evidence: according to the European case law cited, the suspect would have been deprived of a fair trial from the very beginning.

Contacts before formal undercover authorisation

Another appellant complained that the officer had met the suspects before formally being given undercover status, and that all the relevant information was obtained at that stage without legal cover. The Court rejects this on the basis of Constitutional Court Judgment 87/2024: the general power in Article 282 of the Criminal Procedure Act allows police to conceal their identity and purpose to gather information and gain the suspects’ trust, provided there is no excessive interference with fundamental rights and the limits imposed by the integrity of the proceedings are respected. The undercover agent technique is triggered when safeguards need to be strengthened, both for the officer’s own risks and against the risk of entrapment and intrusions into the suspect’s privacy.

The judgment also recalls the limit: police deception cannot be used to obtain self-incriminating statements from someone who has already exercised the right to remain silent, nor to circumvent the protection of private life. These points need case-by-case examination, together with any exclusion of derivative evidence.

A co-defendant acquitted: identification by videoconference two years later

The judgment has a second holding of real practical value. One defendant had been convicted because two officers identified him at trial as the driver who, in a car park, told the undercover officer that the suitcase was his and that someone else would come to collect it. The Supreme Court upholds his appeal for breach of the presumption of innocence and acquits him.

The reasons are very specific: the identification took place almost two years after a contact the officer himself described as fleeting; the other officer was about fifteen metres away; it was dark and there was no evidence about the lighting; the police report contained no prior description of the driver’s features; and the identification was carried out by videoconference, which may limit the perception of height, build or other features. Neither the trial nor the appeal judgment analysed those circumstances. The Chamber recalls that the risk of false positives in facial identification calls for rigorous adversarial testing and a thorough assessment of reliability, and that an acquittal does not require certainty of innocence, only the absence of certainty of guilt. This is consistent with our earlier commentary on the identification of the accused at trial.

Key points for the defence

• Rebuild the timeline. What the police knew before infiltrating, when contacts began and what the officer contributed. If the plan, the suppliers and the dates already existed, an entrapment argument is weak; if the officer proposed the operation or supplied the essential means, it is strong.
• Insist on full access. The doctrine guarantees the questioning of the officers and access to the material on incitement; unjustified restrictions are themselves grounds for complaint.
• Distinguish entrapment from unlawful evidence. They are different routes: the first affects the fairness of the proceedings as a whole; the second, specific items of evidence obtained in breach of rights.
• Do not overlook identification. In operations with several suspects, proof of each person’s involvement may be the prosecution’s weak point, as the acquittal in this case shows.

This commentary is for information only; each undercover operation requires a study of its authorisation, its time limits and the officers’ statements to assess which arguments can be made.