Jaycee Chan, the son of actor Jackie Chan, bows in apology after his release from a six-month jail sentence for allowing people to use marijuana in his apartment. [Photo/IC]

BEIJING - The son of actor Jackie Chan has apologized and asked for a second chance following his release from a six-month jail sentence for allowing people to use marijuana in his apartment.

The 32-year-old Jaycee Chan said at a Saturday news conference that he was rededicating himself to his family and entertainment business career. He said he has no excuse for the behavior that led to his arrest in August alongside Taiwan actor Kai Ko and others.

On Aug 14, 2014, Beijing police arrested Jaycee and Taiwan movie Ko, who were both tested positive for marijuana and admitted to having used the drug. Police discovered 117.7 grams of marijuana in a bedroom at Jaycee's house.

Ko was released after 14 days detention. Jaycee was sentenced to six months in prison and fined 2,000 yuan (US$326) for drug offenses by the Dongcheng District People's Court in Beijing on Jan 9.

Chan's news conference was broadcast live on Chinese state broadcaster CCTV, sending a signal that Beijing hopes to gain from the high-profile case amid a sweeping anti-drugs crackdown.

China has detained a string of celebrities on drug-related and prostitution charges. On Thursday, popular Chinese singer Yin Xiangjie was prosecuted in Beijing for possession of drugs.

Beijing police arrested 45-year-old Yin in a residential community in Chaoyang District in December and seized 13.93 grams of crystal methamphetamine and 1.02 grams of marijuana.

The Beijing Trade Association for Performances said in September it would not hire any stars involved in drug abuse or prostitution. Sixteen Chinese production companies also pledged not to hire stars involved in prostitution, drugs or gambling.