Quality watchdogs have prevented criminals from making billions of yuan from IPR violations, largely thanks to tighter links with police. Yet experts warn that many obstacles still remain in China's fight against fakes.

The General Administration of Quality Supervision, Inspection and Quarantine said it has solved cases worth a combined 12.3 billion yuan ($2 billion) in the past two years. Criminals had infringed on intellectual property rights or were involved in the manufacture and sale of counterfeit goods.

"We've intensified cooperation with public security forces over the past two years," Yan Fengmin, director of law enforcement and supervision at the administration, said at a news conference.