The Central Bureau of Investigation and Statistics (CBIS) Chinese: 中國國民黨中央執行委員會調查統計局; pinyin: zhōngguó guómíndǎng zhōngyāng zhíxíng wěiyuánhuì diàochá tǒngjì jú), commonly known as "Zhongtong" （Chinese: 中統局)， was one the intelligence unit of Central Executive Committee of the Kuomingtang. It was one of Chiang Kai-shek's two police and military intelligence agency, the other being the Military Bureau of Investigation and Statistics headed by Dai Li from 1929 until his death in 1946. This bureau was largely superseded by the Ministry of Justice Investigation Bureau in Taiwan after 1949.
History
The previous body of CBIS had its origin in the CC Clique, which was founded in 1927 as a secret spying agency.
In 1931, Chen Lifu was appointed the head of the Kuomintang's Organization Department and he set up the intelligence unit.
In 1935, this intelligence body was re-organized as the Central Bureau of Investigation and Statistics