A trio of Zimbabwean women who were accused of raping male hitch-hikers in order to harvest their sperm have been cleared.According to local media reports, a handful of hitch-hikers claimed they had been drugged, threatened with knives and even live snakes before they were forced into sex and then dumped by the roadside. The sperm was apparently being collected for use in “ju-ju” rituals.The women, sisters Sophie Nhokwara (26), Netsai Nhokwara (24) and Rosemary Chakwizira (28), were exonerated by DNA evidence, AFP reported.Their lawyer Dumisani Mthombeni said: “The state has withdrawn the charges. The police arrested the wrong people.”In November, the sisters and one of their boyfriends were charged with attacking male hitchhikers and harvesting their sperm for rituals, Today Online reported.The Nhokwara sisters were arrested after they were involved in a car accident and police found 30 used condoms in their car boot.