article_snippet.sent: Liu said drug trafficking groups have "suffered a heavy blow" and drug users have been "forcefully regulated.
article_snippet.sent: However, the police also paid a price, Liu said, in quotes carried by the state-run Xinhua news agency.
article_snippet.sent: Liu said China's drug-related problems were still severe, with online drug trafficking an increasing problem.
article_snippet.sent: Liu said the country's Ministry of Public Security had launched a three-month online campaign starting in April targeting people engaged in drug-related Internet crimes.
article_snippet.sent: Over the past nine months, a string of movie and television stars, film directors and pop singers have been arrested and charged over drug related incidents, including Jaycee Chan, son of kung fu movie star Jackie Chan, who was convicted on a drug charge and sentenced to six months in prison by a Beijing court.
article_snippet.sent: In August last year, dozens of management agencies representing actors and singers signed an agreement with Beijing authorities banning drug use from the entertainment industry and pledging to sack any artists who broke the law.
highlights_snippet.sent: China launches a new online campaign to crack down on online drug crimes .
  
highlights_snippet.sent: Celebrities have been embroiled in China's intensifying anti-drug campaign .