Police have detained the head of Henan's tobacco authority as part of an ongoing corruption probe. Zheng Jianmin, director of the provincial tobacco monopoly bureau, has been at the center of an investigation since mid-March due to "economic problems", a source inside the bureau told China Daily. A special supervision team from the State Tobacco Monopoly Administration has arrived to lead the investigation, and all officials above county level are required to keep their cell phones switched on for 24 hours a day, the source said on condition of anonymity.

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