There is always much talk about the Polygraph in the world of policing. Although this is not commonly referred to as a forensic topic. It is a clear indication where a scientific principle, or idea, is applied to an investigation. That being said, there are more questions than you may be aware of for the science behind the Polygraph. To explore this further, there are many sources of information out there. But here are two you may wish to begin with:
- The Polygraph and the Detection of Deception
(Meijer, Ewout & Verschuere, Bruno. (2010). The Polygraph and the Detection of Deception. Journal of Forensic Psychology Practice. 10. 325-338. 10.1080/15228932.2010.481237)
- The Polygraph and Employee Selection: A review of the literature.
(this one is an older source, but gives a great history and insights into what the idea was behind it in the past)
