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Hopefully to clear some things up about polygraphs in America: 1. You almost never go through them unless you're in the process of obtaining a security clearan
by sickofparadox 6y ago
Hopefully to clear some things up about polygraphs in America:
1. You almost never go through them unless you're in the process of obtaining a security clearance (I'd be quite surprised if the UK didn't do something similar for their clearance process). In fact, I have never heard of any other instance where someone was required to have one, as they are generally not admissible evidence in courts.
2. It is my understanding that the accuracy of polygraphs is mostly down to the skill of the person reading the device and giving the test (hence why they aren't usable as evidence).
- walshemj 6y agoThe UK doesn't its regarded as ineffectual if not an outright carny show fraud.
- anonymousisme 6y agoTo point number 1: Depending on what sort of work the subject is doing with the clearance, he/she may never get a poly, or he/she may get one every time the clearance is updated (usually 5 years). If the subject happens to be living with a foreign national, and somebody writes a "letter of compelling need" for the subject (meaning the subject will retain the clearance in spite of the risk), then the subject will get a poly every year. The poly is not limited to one session. The examiner will keep asking the subject to come back until they are satisfied with the results, or until the subject quits their job. Depending on the personality type of the subject, it can be extremely stressful, or just routine. Many engineers are "Type A" and that is the type most susceptible to stress.