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  5. Detection is, or ought to be, an exact science, and should...

Detection is, or ought to be, an exact science, and should be treated in the same cold and unemotional manner.

Arthur Conan Doyle
Cold, Should, Unemotional
The Sign of the Four ch. 1 (1890)
Detection is, or ought to be, an exact science, and should be treated in the same cold and unemotional manner.