"They are ingesting the amalgam concealed in condoms and this is done for two principle reasons. One is to be able to bypass mine security and the other is also to prevent being robbed by opposing groups," Brigadier Ebrahim Kadwa, a commander in South Africa's Hawks organized crime unit, said, showing parliament slides of gold-filled condoms in miners' x-rays.
Potentially toxic clumps of mercury and gold concentrate can be refined to extract gold once passed through the body.
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