INTUITIVE theories are often easier to believe in than to prove. For instance: conventional wisdom says that the crime rate should rise during a recession.

通常，相信直觉理论比证明直觉理论要容易，例如：传统观点认为在经济萧条时期犯罪率应该上升。

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With the trend of more and more organized crime and hi-tech crime, conventional and open criminal investigation measures are facing unprecedented challenges.

在当今刑事犯罪越来越呈现组织化、科技化的趋势下，常规的、公开的刑事侦查措施面临前所未有的挑战。

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Officials said they hoped the technology would enhance counterterrorism efforts and boost conventional crime-fighting efforts.

WSJ: New Tracking Tool for NYPD

Pattern analysis -- the heart of data mining -- is conventional crime-solving, whether the suspicious patterns are spotted on a crime pin map, on a city street, or in an electronic database.

CENTERFORSECURITYPOLICY: Balancing security and privacy during wartime

For instance: conventional wisdom says that the crime rate should rise during a recession.

ECONOMIST: America's falling crime rate