General recommendation No. 19 on violence against women, adopted by the Committee at its eleventh session in 1992, states that discrimination against women –as defined in article 1 of the Convention- includes gender-based violence, that is, ‘violence which is directed against a woman because she is a woman or that affects women disproportionately’, and, as such, is a violation of their human rights.
For over 25 years, the practice of States parties has endorsed the Committee’s interpretation. The opinio juris and State practice suggest that the prohibition of gender-based violence against women has evolved into a principle of customary international law. General recommendation No. 19 has been a key catalyst for this process.