There is a sentence the President of Botswana keeps returning to, and it lands with the flat certainty of a verdict. “If a woman says you’re the father, you’re the father, and you must take care of the child.”
He said it again this week, seated among UNICEF officials and the Ministry of Child Welfare at a workshop convened to overhaul the country’s children’s legislation. The room had gathered to talk about statutes and safeguards. Advocate Duma Boko, lawyer by trade and rhetorician by temperament, steered it somewhere more combustible: into the slippery territory where biology, law, money and love refuse to agree on a single definition of the word dad.
The occasion was a proposal, raised in the House of Chiefs, to make DNA testing compulsory – a suggestion that has lit up kitchens, bars and group chats across the country. Boko’s response was not a tidy yes or no. It was a lawyer’s distinction, delivered with a moralist’s edge.
The putative father
In Boko’s framing, the moment a woman names a man, the law hands him a title he did not choose: putative father. It is a centuries-old term of art, and the President wields it deliberately. A putative father is the presumed father – presumed until science, not rumour, says otherwise. Under this logic, the burden does not fall on the mother to prove her claim. It falls on the man to disprove it. “Only a DNA test proving otherwise,” he argued, can discharge a man from the duty of care.
It is, in effect, a presumption of paternity. And Boko is unbothered by the men who bristle at it. He reserved a pointed warning for the loudest sceptics – that compulsory testing might reveal some of them have “fathered a lot of children” they never acknowledged. The scalpel, he suggested, cuts both ways.
Yet he refused to let the conversation collapse into forensics. Biological or putative, he insisted, “the presence of a father figure in a child’s life remains essential.” His north star was disarmingly simple, and he said it plainly online afterward: the child comes first. “Regardless of biological ties,” he wrote, “no child should suffer because of circumstances beyond their control.”
What a cheek swab actually knows
Behind the politics sits a molecule, and it is worth understanding what it can and cannot do – because the President is, in essence, proposing to let it arbitrate fatherhood.
A paternity test does not read the whole genome. It reads a scattering of signposts. Scientists examine short tandem repeats, or STRs – stretches of DNA where a tiny sequence stutters and repeats, varying wildly from person to person. At each of roughly 20 or more such locations, a child carries two versions, one inherited from the mother and one from the biological father. Strip away the maternal contribution, and whatever remains must be matched against the man in question.
When the signposts align across every marker, laboratories express the result as a probability of paternity, conventionally reported at 99.99 percent or higher – not quite philosophical certainty, but closer to it than almost any other claim a court will ever hear. When a single marker fails to match in a way that cannot be explained by mutation, the verdict flips to the brutal clarity of zero: exclusion. The man is not the father, full stop.
The elegance is that it needs almost nothing. A buccal swab – a soft brush rolled against the inside of the cheek – harvests enough cells. No needles, no blood, no drama. And the science has outrun even birth itself: non-invasive prenatal paternity testing can now isolate fragments of fetal DNA floating in a mother’s bloodstream from as early as the seventh week of pregnancy, resolving the question before a child draws breath.
This is the quiet revolution Boko is reckoning with. For most of human history, fatherhood was a matter of faith, reputation and arithmetic. The helix has turned it into a matter of fact.
The 70 percent that haunts the room
No conversation about DNA in Botswana escapes a single, incendiary figure. The Global DNA Diagnostic Centre in Gaborone has reported that of more than 2,500 paternity tests it conducted between 2022 and 2025, roughly 70 percent returned negative – the tested man was not the biological father. Across the border, Zimbabwean laboratories have floated an even steeper 72 percent.
These figures circulate widely but originate from private laboratories rather than peer-reviewed national data, and the sample is self-selected – only men with doubts tend to test. Readers should treat them as indicative of a testing-clinic population, not of Batswana men as a whole. The underlying statistics warrant independent verification before being cited as fact.
That caveat matters, because the number has already done its cultural work. It has curdled into suspicion, spawned reality-television spectacles elsewhere in the region, and fuelled the very campaign for mandatory testing that Boko was asked to bless. He declined to treat the statistic as a mandate for mass genetic surveillance. The science, in his telling, is a tool for truth – not a weapon for humiliation.
Consent, and the children caught in between
For all his insistence on scientific truth, the President drew a firm line around how that truth is obtained. He spoke of a troubling pattern: fathers who “sneak the child away” to a laboratory without the mother’s knowledge, as though paternity were a private audit to be conducted in the dark. His position was unambiguous – consent is required. A child’s genome is not a battlefield for adults to raid unilaterally.
He also named an inequality rarely spoken aloud. Access to testing, he noted, is gated by cost and convenience, which means suspicion tends to harden precisely where answers are hardest to afford. If the state truly wants the molecule to settle disputes, it must first make the molecule reachable.
A fatherhood bigger than a result
What makes Boko’s intervention arresting is its refusal of the binary the debate keeps demanding. The mandatory-DNA lobby wants fatherhood reduced to a laboratory readout. Its fiercest opponents want the question buried altogether. The President stakes out a harder, more humane middle: let science tell the truth, but do not let the truth excuse a man from the moral labour of raising a child who has done nothing wrong.
It is a position with teeth and tenderness in equal measure. The putative father must step up. The doubtful father may seek proof, with consent. The child, whatever the markers say, must not be left to pay for the arithmetic of adults.
In the end, the double helix can tell Botswana who shares a man’s alleles. It cannot tell him how to be a father. On that, Advocate Boko seems to believe, no swab will ever substitute for a choice.
This feature is drawn from President Boko’s remarks at the High-Level Workshop on the Review of Children’s Legislation (27 October 2026) and the attendant compulsory-DNA debate in the Ntlo ya Dikgosi. Laboratory statistics cited are from private testing centres.
