He had learned to be as wary of intuition as he was of superficial judgements, but it was hardly possible to be a long-serving detective officer and … - P. D. James

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He had learned to be as wary of intuition as he was of superficial judgements, but it was hardly possible to be a long-serving detective officer and not know when a witness was lying. It wasn't always suspicious or even significant. Nearly everyone had something to hide. And it was optimistic to expect the whole truth at a first interview. A wise suspect answered questions and kept his counsel; only the naïve confused a police officer with a social worker.