Law enforcement agencies are expected to grow more confident and experienced in probing monopolistic practices, experts and lawyers say.

Jiang Qiping, an antitrust expert at the Chinese Academy of Social Sciences, said recent cases offered points of reference and experience for law enforcement agencies, which will no doubt be more proactive in future investigations.

His comments came after the Shanghai High People's Court ruled on Thursday that Johnson & Johnson in China violated the anti-monopoly law by enforcing a minimum price on its distributors.