Lie detector tests are a staple of pop culture. Whether it’s a criminal suspect sweating through an interrogation scene or a dramatic reality show moment, polygraphs are often portrayed as truth-telling machines that leave no room for doubt. They’ve got wires, beeping machines, pulsing graphs—it feels scientific. It looks convincing.

But here’s the truth: lie detector tests are deeply flawed, and they have no place in a courtroom or any situation where someone’s reputation, freedom, or future is on the line.

In a controversial move, the Lahore High Court in Pakistan ruled that lie detector results would be admissible in determining former Prime Minister Imran Khan’s guilt in connection to the May 9th, 2023, protests. Based on that decision, the Anti-Terrorism Court (ATC) has ordered polygraph test of Imran Khan. This decision raises serious concerns about fairness, due process, and the misuse of flawed science in politically sensitive trials.

Read More: Smiling Betrayal: US Congressmen Embracing Butcher of Pakistani Democracy

Let’s break down why polygraphs don’t live up to the hype—and why courts around the world have decided they simply can’t be trusted.

First things first: polygraphs don’t detect lies. That’s a common misconception. What they actually measure are physiological responses—things like heart rate, blood pressure, respiratory rate, and skin conductivity (how much you’re........

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