The Two-Finger Test, and Its End

In one line

A medical observation with no evidentiary value survived three decades of criticism, and two decisions ended it: one for the reason, and one for the prohibition.

In the wording a student can write in an exam: the two-finger test, or per vaginum examination, was the practice of recording whether the vagina admitted one or two fingers, from which an opinion was expressed that the woman was habituated to sexual intercourse, and from which consent on the occasion in question was then argued; in Lillu v. State of Haryana, (2013) 14 SCC 643, the Supreme Court held that the test and its interpretation violate the right of rape survivors to privacy, physical and mental integrity and dignity, and that a finding of habituation raises no presumption of consent; and in State of Jharkhand v. Shailendra Kumar Rai, (2023) 14 SCC 471, it held that the test has no scientific basis, neither proves nor disproves an allegation of rape, re-victimises and re-traumatises the woman, is an affront to her dignity, and must not be conducted.

Why it lasted so long

Because it looked like evidence. A doctor recorded an observation, an opinion followed from it, and a court treated the opinion as expert evidence.

Three fallacies were compressed into that sequence, and naming them is the substance of an answer.

One: the observation proves nothing about the occasion. Whether the vagina admits two fingers says nothing about whether intercourse occurred on the day in question, still less about whether it was consensual.

Two: habituation is not consent. Even if a woman had had intercourse before, that has no bearing on whether she agreed on this occasion. This is the fallacy Mathura's reasoning rested on, and Lillu names it.

And three: it was used to attack the woman rather than to prove a fact. Its practical function in a trial was to put the prosecutrix's sexual history before the court under the cover of a medical opinion, at a time when that history was not otherwise admissible.

The reasoning: Lillu

Lillu v. State of Haryana, (2013) 14 SCC 643, decided on 11 April 2013.

Facts. The prosecutrix was thirteen years, nine months and two days old on the date of the incident, her date of birth being taken from the school register and proved by two teachers. The medical officer had recorded that the hymen was completely torn and that the vagina admitted two fingers, and had opined that the prosecutrix was habituated to sexual activities. The defence relied on that opinion.

Held. Since the prosecutrix was below the statutory age, it was wholly immaterial whether she was a consenting party, so the medical opinion could not assist the defence in any event. On the practice itself, the Court held that the two-finger test and its interpretation violate the right of rape survivors to privacy, physical and mental integrity and dignity; that survivors are entitled to legal recourse that does not re-traumatise them or violate their physical or mental integrity and dignity; and that medical procedures must be conducted in a manner that respects their right to consent and must not constitute cruel, inhuman or degrading treatment. A conclusion that the woman is habituated to sexual intercourse cannot by itself give rise to a presumption of consent.