As a kind of criminal investigation , interception may make up many shortages of the traditional investigations .It has the use for fighing some crimes ,the use can't act for .But, the use of interception bases on the violation of the citizen rights, so it should be satisfactory of the principle of legal reservation and the principle of proportion.For reference, this article investigate the changing process of the interception system of The United States , Japan and China Taiwan. The United States is the first country that discuss the use of interception in the criminal procedure, its interception system include the principle of Reasonable Expectation of Privacy and the title 3 of the Omnibus Crime Control and Safe Streets Act of 1968,18 U.S.C.A.The crime investigation and interception of Japan has much contents than others. On the foundation of other experiences, China Taiwan has established the guarantee and Inspect of Communication .This study can provide some consult for our country and others that lack interception law.On the analysis of the use of interception in our country and our laws about interception ,the article put forward the Legislative Suggestions .At the same time,the Legislative Suggestions has consulted other interception laws.The whole article has about 40,000 words.
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