Crack being sold in a favela in Rio
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Drug dealers impose crack trade ban in two Rio favelas

20 August 2012 Last updated at 18:49 BST

Drug-dealers in two Rio favelas have stopped selling crack, claiming it has too devastating an impact on the local community.

Local druglords, affiliated to the Commando Vermelho gang, have decided that crack addicts are destroying the neighbourhoods.

But authorities point out that their change in conscience could in fact be because dealing cocaine and marijuana draws less attention from police.

MarĂ­a Dupin reports.