A Lie Detector is an interrogation device designed to detect deception by measuring changes in the brain.
The lie detector uses two probes: one inserted into the medulla and one into the fore brain. These very thin probes are inserted via a remote guided robot arm. Doses of broad-spectrum anti-bacterial drugs are required by subjects of this device.
Lie detectors detect the "formation" of a lie in the brain, the electro-chemical changes of actual thought. Because of the nature of the sensors used in the lie detector, the device can detect, not only deliberate falsehoods, but also other non-true statements, including statements in which the subject knows a correct answer subconsciously but genuinely believes a false answer to be true or even stories, which the teller knows are untrue, but are told with no intention to deceive, such as fables.