Turning it "A-lie-ve"
Since John Larson, a medical student at University of California Berkeley, created the polygraph in 1921, Americans assumed they found the secret to lie detection. A 1935 case ruled two Wisconsin men guilty for failing the test, and polygraphs would creep into the legal system. However, lying is more complex than simple detection and the justice system tells otherwise.
People succumb to testing each year and 40% of them result in incorrect results. The polygraph partially makes its “success” on scare tactics and believing polygraphs naturally makes “lie signs” increase. The police know the machine is wrong and decide to force confessions, however, people tend to fabricate to evade polygraphs.
Prior to John Larson, the Bedouins, or Arabic nomads, used a hot iron rod to test lying, where the accused would lick the rod three times and then be provided with water. After a short amount of time, if the accused had a burnt of scarred tongue that meant they were lying. This obscure piece of superstition is just as scientific as the polygraph itself.
Conquering the Polygraph
Green River Killer, Gary Ridgway passed numerous polygraphs before he was convicted for 48 murders and later confessed for more. Some of the most notorious criminal beat the polygraph because all one needs to do is stay relaxed; a recent study confirms taking anti-hypertensives like melatonin can eradicate chances of failing. These reduce heart rate, breathing, and vessel dilation, all key factors when determining a “lie”.
Gary Ridgway, Notorious Green River Killer
Finding a Fib Unfit
Sex offenders are automatically convicted if they fail a test in Florida and the police can obtain warrants through the polygraph in Massachusetts. Either way the polygraph can wrongly conclude everything and the time for real lie detection development should start now.