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In page Tan Kai:

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Although Tan pleaded innocent and no evidence of any crime was presented (the person from whom the secrets were supposedly taken did not appear), he was convicted in a three-hour trial at the Xihu District Court in Hangzhou, on the morning of May 15, 2006, which was closed to the public. He was sentenced to 18 months in prison for "illegally obtaining state secrets" by the Hangzhou Municipal People's Intermediate Court on August 11, 2006. His lawyer Li Heping raised concerns about Tan's health condition in prison, as he suffers from a liver disease.[citation needed]