The documentary of Liu Chao case in Hangzhou is a case record. According to the information of Dragonfly FM, welcome to listen to the record album of Dragonfly FM case-the audio program "Case Record" under the case of Hangzhou Liu Chao. Therefore, the documentary of Liu Chao case in Hangzhou is the record of a case. Hangzhou, referred to as "Hangzhou", was called Lin 'an and Qiantang in ancient times. It is a prefecture-level city, provincial capital, sub-provincial city and megacity under the jurisdiction of Zhejiang Province, the core city of Hangzhou metropolitan area, the economic, cultural and scientific center of Zhejiang Province approved by the State Council, and one of the central cities in the Yangtze River Delta.