With the increase in drug trafficking, the number of drug addicts has also been rising across the country.

By the end of November, China had 2.76 million registered drug users, but the total number of users could be more than 13 million, according to the report.

About 75 percent of the registered users were under the age of 35, and more than 50 billion yuan ($8.1 billion) is spent on drugs every year, said the report.

"Drug-taking damages individuals and society a lot, and the drug user may more easily commit crimes," Ji said, suggesting that the government reward residents who provide important tips to the police.

Thanks to public reports, Beijing police uncovered several drug cases last year, including ones involving celebrities.

On Jan 9, Jaycee Chan, son of Chinese kung fu superstar Jackie Chan, was sentenced to six months in prison and fined 2,000 yuan after he helped others take drugs in August.

On Feb 28, Yin Xiangjie, a popular singer, was given a seven-month sentence and fined 2,000 yuan for illegally possessing drugs.

Another actor, Wang Xuebing, was arrested on March 9 after he was found taking drugs with friends.

Chen Shuaifeng, a drug specialist at the People's Public Security University of China, said the disclosure by stars can educate fans and give warnings to the public.

But Chen confirmed that drug trafficking in Guangdong and Yunnan provinces is still serious, adding that Guangdong should be regarded as a priority in the crackdown on drug manufacturing.