The Polygraph Test
Beverly was asked to take a polygraph test. She complied, and Fisher observed from a nearby room. Beverly was asked twice if she knew the whereabouts of Nicholas Barclay, which she denied. According to the test, Beverly was telling the truth—but the polygraph examiner told Fisher that Beverly might be lying. If she was on drugs, the test would be inaccurate. They decided to wait several hours until the effects of any narcotics, including methadone, had diminished.
The test was administered once more. Beverly was asked the same question. This time, the machine went wild, indicating that Nicholas' mother had told a lie.
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