Southall Black Sisters (SBS) is a non-profit organisation based in Southall, West London, England. This women's group was established in August 1979 in the aftermath of the death of anti-fascist activist Blair Peach, who had taken part in a demonstration against a National Front rally at Southall Town Hall.[1][2] In 1980, SBS successfully campaigned against virginity testing in the UK, a policy that was being used to verify the authenticity of Asian marriages by checking the state of women's hymens.[3][4]