Beijing - Police in Central China's Henan province have brought 95 people implicated last month in a tainted pork scandal into custody and have successfully solved the case, Henan public security authority announced over the weekend.

The Henan police said they have ceased to investigate the case, which began with the discovery that the Henan-based Shuanghui Group, China's largest meat processor, had bought pigs fed with clenbuterol, an illegal additive also named "lean meat powder".

Clenbuterol helps pigs burn fat and results in leaner and more expensive meat. It can cause heart palpitations and dizziness in people. In China, the substance has been banned as an additive in animal feed since 2002.