The watch boxes used for carrying the drugs are displayed in Guangzhou city, South China's Guangdong province, Jan 21, 2016. [Photo by Chao Xiao/provided to China Daily]

Law enforcement authorities across Guangdong province have reportedly awarded 24.81 million yuan to 3,546 informants since 2013.

Thanks to the 3,456 informants, 14,521 drug-related cases have been busted with 18,877 suspects arrested and 8.32 tons of drugs seized. These cases account for about 20 percent of all drug-related cases busted since 2013.

Currently, 14 cities in Guangdong province are running this award scheme, said Deng.