Chongqing gang trials
The Chongqing gang trials (or dahei campaign) were a series of triad-busting trials in the city of Chongqing that began in October 2009 and concluded in 2011. Carried out under the auspices of municipal Communist Party chief Bo Xilai and police chief Wang Lijun, a total of 4,781 suspects were arrested, including 19 suspected crime bosses, hundreds of triad members, and a number of allegedly corrupt police, government and Communist party officials, including six district police chiefs and the city's former deputy police commissioner, Wen Qiang.