Prostitution & Sexual Exploitation: Criminal Defense

The Spanish legal system articulates a partial abolitionist model regarding prostitution: it does not penalize voluntary prostitution among adults, but severely sanctions all forms of exploitation of others' prostitution (Art. 187 CP), minor prostitution (Art. 188 CP) and human trafficking for sexual exploitation (Art. 177 bis CP). The protected legal interest is sexual freedom and indemnity and, in trafficking scenarios, human dignity as essential nucleus recognized in Art. 10.1 of the Spanish Constitution and the Warsaw Convention (2005). Consolidated Supreme Court case-law has defined the typical contours: procuring does not require violence or coercion when there is lucrative exploitation, but penalties radically aggravate when such commissive means concur.

The conducts punished by Art. 187 CP are two, set out in the two paragraphs of section 1. Profiting from another's prostitution (Art. 187.1, second paragraph, CP) carries 2 to 4 years' imprisonment and a fine of 12 to 24 months for whoever profits by exploiting another person's prostitution, even if voluntary, where personal or economic vulnerability or onerous, disproportionate or abusive conditions concur. Coercive determination into prostitution (Art. 187.1, first paragraph, CP) carries 2 to 5 years' imprisonment and the same fine where an adult is determined to enter or remain in prostitution through violence, intimidation, deception or abuse of superiority, need or vulnerability. Premises provision —providing locales or establishments for others' prostitution in exchange for economic consideration— has generated intense jurisprudential controversy: the Supreme Court distinguishes between mere market-price rental (atypical) and facilitation with control over activity or charging disproportionate amounts (typical). Sex tourism, internet prostitution and social media recruitment are emerging modalities subject to specialized investigations.

The penalties reach extremely severe dimensions. Minor prostitution (Art. 188 CP) is punished with 2 to 5 years of prison; if the victim is under 16, 4 to 8 years; with aggravating factors (Art. 188.3 CP), up to 8 to 12 years. The solicitation of sexual services from minor or trafficking victim (Art. 188.4 CP, introduced by LO 1/2015) is an autonomous type applicable to the client who knows or should know the victim's condition. Human trafficking for sexual exploitation (Art. 177 bis CP) is the most serious offence in this sphere, with 5 to 8 years of prison in its basic form and up to 15 years or more with aggravating factors (criminal organization, special vulnerability, endangerment, minor victim). The forfeiture of profits, premises, vehicles and assets used applies under Art. 127 CP. Civil liability for moral and patrimonial damages can reach very high figures.

Technical defense is built on four axes. First, the absence of typical exploitation: the offence requires economic profit causally linked to the sexual activity of others; merely commercial relationships (market-price rentals without control, security services without imposing work conditions, transport without linkage to activity) are atypical. Second, accredited voluntariness of the prostitute: when the person engaged in prostitution freely, without coercion, deception or abuse of superiority, and no need situation or vulnerability exploited by the accused concurred, the simple modality of Art. 187.1.a CP fails. Third, dissociation of the accused from criminal organizations: in macro-proceedings with multiple defendants, individual membership or necessary cooperation must be proven; mere knowledge or tangential relationship does not integrate authorship. Fourth, the challenge of incriminating evidence: testimonies of protected witnesses without judicial ratification, telephone interventions with motivation defects, searches with procedural vices, are potential evidentiary nullities.

In current forensic practice, police operations on sexual exploitation and trafficking have intensified after the creation of UCRIF (Central Unit for Illegal Immigration Networks and Documentary Falsifications) of the National Police and the Central Trafficking Section of the Prosecutor's Office. Investigations habitually develop as macro-cases with multiple defendants, massive telephone interventions, simultaneous searches, precautionary asset forfeiture and pursuit of related money laundering. Organic Law 1/2025 on Justice Service Efficiency, Directive 2011/36/EU on trafficking and the Warsaw Convention configure a demanding legal framework. At Alonso Sala, our criminal lawyers specialized in prostitution exploitation intervene in these complex proceedings with a multidisciplinary team including specialists in economic criminal law (for laundering challenges), experts in international judicial cooperation (in transnational scenarios), and forensic experts in electronic communications. The procedural strategy is oriented to the individualized dissociation of the accused from exploitative activity, rigorous challenge of circumstantial evidence and articulation of technical defenses that precisely distinguish lawful activity from criminally relevant conduct.