On May 20, 2026, Nairobi’s Milimani High Court issued a landmark ruling in Petition E490/2025 that fundamentally reshapes how Kenyan law treats consensual sex among minors. In a judgment delivered by Justice Bahati Mwamuye, the court held that applying Sections 8, 9, and 11 of the Sexual Offences Act (SOA) to teenagers in consensual, close-in-age relationships “violates multiple constitutional rights.” The petition was brought by three anonymized adolescents (referred to as HSO, AMO, and TA) and the youth organization Network for Adolescent and Youth of Africa (NAYA) against the Attorney General and three state agencies. It challenged the broad criminalization of teen sex as incompatible with Articles 27, 28, 31, 43, and 53 of the 2010 Constitution, which guarantee equality, dignity, privacy, health, education and the best interests of the child.
The petitioners, represented by the Centre for Reproductive Rights and Reproductive Health Network Kenya, recounted how police had arrested and charged them under defilement laws despite having no evidence of force or exploitation. For example, in one case a 17‑year‑old boy was charged after police raided the bedroom he shared with his 16‑year‑old girlfriend; in another, a 17‑year‑old faced prosecution when his partner’s pregnancy led to defilement charges—which were withdrawn once his minor status was confirmed. Petitioners argued that such enforcement “broadly and harmfully criminalize[d] adolescent peer relationships” that the law was meant to protect. They insisted the law must draw a line between exploitative abuse and consensual teen intimacy so as not to derail adolescents into the criminal justice system.
The respondents—through the Office of the Attorney General and security agencies—countered that the SOA sections were necessary to safeguard minors and that strict enforcement prevented loopholes for predators. They emphasized protecting children’s safety, especially in the context of widespread gender-based violence. The judge acknowledged this concern but found that “anything less” than a contextual approach would allow criminal law to operate “in a manner disconnected from constitutional values.” In other words, blanket prosecutions of consensual teen couples imperil the rule of law by overriding rights enshrined in the Constitution.
In its reasoning, the court drew a sharp distinction between two categories: “consensual, non-coercive and non-exploitative sexual conduct between adolescents of close age proximity” on one hand, and “non-consensual, coercive, exploitative or abusive” conduct on the other. Justice Mwamuye ruled that investigating and prosecuting agencies must treat these scenarios differently. Police, prosecutors and courts are now obliged to examine each case’s context—including the ages of the parties, evidence of consent, and any power imbalance—before bringing defilement charges. The court stressed that the SOA “must be interpreted in harmony with the Constitution” and read consistently with fundamental rights.
The orders flowing from the judgment were comprehensive. The Director of Public Prosecution’s Office was directed to formalize and publish clear guidelines for handling consensual teen sex cases, and the National Police Service must review its arrest and interrogation protocols relating to minors. State agencies responsible for health, education and child protection were instructed to develop policies so that adolescents can access sexual and reproductive health information “without fear of criminalization.” Crucially, the court permanently stayed two pending defilement cases in Makadara Court—CR No. 34 of 2025 and MSCO/E239 of 2023—insofar as they involved fully consensual under‑18 relationships. Each party was ordered to bear its own costs, recognizing this as public-interest litigation.
Reaction among Kenyan legal and civil society actors was swift. Former Law Society president Faith Odhiambo lauded the decision as a “major turning point” in the justice system’s treatment of adolescent sexuality. She noted the ruling affirmed that treating normal teen relationships as crimes had violated youths’ rights to equality, dignity, privacy, health, education and their best interests. Victor Rasugu of NAYA commented that young people had long “lived in fear… afraid that a relationship could land them in a police cell,” and praised the judgment’s potential to relieve that fear. At the same time, observers cautioned that drawing the line in future cases may be challenging. Odhiambo warned implementation could be difficult, especially amid Kenya’s serious gender-based violence crisis.
The implications for the rule of law are profound. By insisting that enforcement of the criminal law align with constitutional norms, the High Court reinforced that even well-intentioned statutes cannot override fundamental rights. The judgment’s context-based approach prevents mechanical application of the defilement laws to consensual teen conduct. In practical terms, it bars automatic arrests for under-18 sex between peers and requires authorities to instead focus on coercion or abuse when children’s welfare is truly at stake. Many commentators believe this clarity will reduce arbitrary prosecutions of adolescents and promote proportionality and fairness which are core principles of the rule of law. If faithfully implemented, the ruling ensures that Kenya’s laws protect children without criminalizing normal adolescent behavior.
