By AMOS MUOKI
Contraception aims to do two things. First, and most importantly, it emancipates women by granting them direct control over their fertility. Second, it functions as a broader intervention designed to advance social and economic development. These twin objectives are widely acknowledged. Yet the law does not simply applaud from the sidelines. It regulates. It adjudicates. And when the technology fails or a physician errors, it is the courts that must draw the line between private misfortune and compensable harm.
The Mechanisms of Modern Contraception
The range of available methods is considerable, and each operates on a distinct physiological or mechanical principle. The condom is a thin, sheath-shaped rubber barrier employed during sexual intercourse to reduce the probability of pregnancy and sexually transmitted infections. An intra-uterine device, or IUD, is a small, frequently T-shaped appliance inserted directly into the uterus; depending on its specific formulation, it can prevent pregnancy for up to a decade or longer by rendering the uterine environment inhospitable to sperm and implantation.
Injectable contraceptives, administered as a shot typically every three months on days one through five of the menstrual cycle, suppress ovulation through hormonal intervention. The female contraceptive pill achieves a similar outcome via oral ingestion, altering the body's hormonal equilibrium to inhibit the release of an egg.
Sterilization represents a permanent surgical solution. It involves blocking, closing, or removing the fallopian tubes in women, or occluding the vas deferens in men, thereby interrupting the anatomical pathways through which sperm and eggs travel.
Finally, natural methods eschew devices and pharmaceuticals altogether. These approaches depend either on restricting intercourse to periods when the woman is not fertile or on the man withdrawing prior to ejaculation.
A persistent and unavoidable complication shadows every method listed above. Reliability. No form of contraception is infallible. When failure occurs, some unplanned pregnancies culminate in abortion. Others proceed to term, and it is in that latter scenario that the law of tort is most frequently called upon to adjudicate loss.
The Law's Pendulum: From Public Duty to Private Conscience
The common law's stance on the legality of contraceptives has not been static. It has shifted, sometimes dramatically, reflecting evolving societal norms regarding personal autonomy.
Consider the judgment of Lord Denning in Bravery versus Bravery [1954] 1 WLR 1169. In that earlier era, the court held that a sterilization performed "so as to enable a man to have the pleasure of sexual intercourse without shouldering the public interest attaching to it" was contrary to public policy and degrading to the man himself. The state's interest in procreation and the family unit was paramount, and it could override individual preference.
That paternalistic view has since been largely interred. In R (Smeaton) versus The Secretary of State for Health [2002] the court, per Mumby J, delivered a robust affirmation of individual sovereignty. The decision to use an intra-uterine device, the pill, the mini-pill, or the morning-after pill was, in his words, "no business of government, judges or the law." It was a matter for individual men and women, acting in what they believe to be good conscience and in consultation with professional advisers.
However, the retreat of judicial morality does not equate to an absence of state regulation. The law very much regards contraception as its business at the point of manufacture and distribution. Contraceptives are medical products. As such, they require licensing by the Pharmacy and Poisons Board under Section 3A(e) of the Pharmacy and Poisons Act (Cap 244) Laws of Kenya before they may be used. The private decision is protected; the public product is strictly controlled.
Tort Liability and Contraception
When a contraceptive fails or causes injury, the matter returns squarely to the purview of the courts. The following scenarios illustrate the complex and sometimes contradictory principles that govern tort liability in this field.
Side Effects and the Burden of Causation
A physician who prescribes a contraceptive without warning the patient of potential side effects is, prima facie, negligent. That is the easy part. The difficulty lies in establishing that the contraceptive actually caused the harm alleged. The courts have set a high evidentiary bar. In Vadera versus Shaw [1999] 45 BMLR 162, the court made it plain that a claimant who asserts that taking the pill caused her to suffer a medical condition faces an "uphill task." Proving a direct causal nexus between a hormonal medication and a subsequent illness is fraught with complexity. The body is not a simple laboratory. Confounding variables abound. The law, recognizing this, does not readily infer causation from mere temporal sequence.
Defective Products and the Value of a Child
This is where tort law encounters its most profound philosophical and policy dilemmas. What happens when a contraceptive device fails mechanically, and a healthy child is born? Is the cost of raising that child a recoverable loss?
The English courts have answered that question with a firm negative, albeit with reasoning that rests on multiple pillars. In Richardson versus LRC Products [2000] Lloyds Rep Med 280, a condom split during intercourse. The woman became pregnant and brought an action against the manufacturer. She failed. The court's reasoning was threefold.
First, the claimant did not demonstrate that the product was defective in the sense that it failed to provide the protection that "persons generally are entitled to expect." The judge observed that people are not entitled to expect any method of contraception to be one hundred percent effective. A split condom, while regrettable, is a known and statistically inevitable occurrence, not necessarily evidence of a manufacturing flaw.
Secondly, the claimant knew the condom had broken. She did not avail herself of the morning-after pill. This constituted a failure to mitigate her loss.
Lastly, and most significantly, the court held that damages are not available for raising a child. This principle was more fully articulated in McFarlane versus Tayside Health Board [1993] The court reasoned that it might cause psychological harm to a child to discover that his or her birth was the subject of litigation rather than joy.
Furthermore, there exists a strong public policy against describing the birth of a healthy child as a "loss" to the parents. It is not possible, nor is it desirable, for a court to weigh the intangible joy a child brings against the financial costs of parenthood. To treat childbearing as a pure economic loss contravenes fundamental rules of tort. As the court in McFarlane observed, if the law regards an event as beneficial, plaintiffs cannot make it a matter for compensation merely by stating it was an event they did not want to happen. Plaintiffs are not permitted, through a process of subjective devaluation, to turn a benefit into a detriment.
Yet the McFarlane doctrine is not universally adopted. A striking counterpoint emerges from the Kenyan High Court. In AAA versus Registered Trustees (Aga Khan University Hospital, Nairobi), Nairobi HCCC No. 3 of 2013 [2015] eKLR, Justice HPG Waweru awarded the plaintiff damages in the sum of about KSh. 4 million The award was explicitly designated as the costs of "raising and educating the child" born as a result of a defective intra-uterine device administered by the hospital. This holding directly contravenes the third limb of the Richardson reasoning. It treats the financial burden imposed by a failed contraceptive as a compensable head of damage, a view that the English courts have expressly rejected. The divergence underscores that the legal characterization of a child's birth whether as a blessing that cannot be reduced to a ledger entry or as a foreseeable consequence of negligence carrying a measurable cost remains a matter of jurisdictional policy.
Mistaken Sterilization and the Loss of Reproductive Capacity
The legal calculus changes considerably when the harm complained of is not the arrival of a child, but the permanent loss of the ability to conceive one. In Devi versus West Midlands Area Health Authority [1980] 2 CL 44, a woman entered hospital for a minor gynecological procedure. Due to a surgical error, she was sterilized. Her religion explicitly forbade sterilization and contraception. The court awarded her Four Thousand Sterling Pounds [697, 664.40 Kenyan shillings] in damages.
Here, there was no need to balance the joy of a child against its cost. The loss was clean and quantifiable: the deprivation of a fundamental physiological capacity. The damage was not the creation of a life but the elimination of a core aspect of personal identity and bodily autonomy. In this context, tort law operates with far greater clarity and consensus.
Conclusion
The law of contraception occupies an uneasy middle ground. It has ceded the moral high ground of the bedroom, recognizing in Smeaton that such decisions belong to the individual, not the state. But it remains the final arbiter of liability when the technology fails or the surgeon's hand slips. The contrast between Richardson and AAA v. Aga Khan reveals a fracture in the common law world over whether the birth of a healthy child can ever be framed as a legal wrong. That question, with all its ethical weight, remains far from settled.
The writer is legal commentator on constitutional and human rights issues, the article is intended for public education and does not constitute legal advice.
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