Johannesburg – For months they would lie in wait at dumping areas around Joburg, dressed in worn-out and dirty overalls pretending to be peasants.

In the early hours of the morning, late at night, in the freezing cold or in pouring rain, Warrant Officer Morake Khoali, Captain Maria Mokhele, constables Leutsoa Mofokeng and Jerry Khambule, from the Child Protection and Sexual Offences Unit in Vereeniging, would be there.

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