| Answer | Crossword Clue |
|---|---|
| TRUTH | Lie detector determination, in theory |
| polygraph | A machine designed to detect and record changes in physiological characteristics, such as a person's pulse and breathing rates, used esp. as a lie detector |
| polygraphs | A machine designed to detect and record changes in physiological characteristics, such as a person's pulse and breathing rates, used esp. as a lie detector |
