One thing that I find very interesting is learning about different methods that law enforcement uses when it comes to finding criminals. There are some methods that will absolutely stand up in a court of law, and other methods that will not, but can still be useful if they are trying to figure out whether or not someone ought to be a suspect. One of these methods is the polygraph test, better known as the lie detector test. While these tests can fail at times and therefore are not always seen as good evidence in court, they are still useful for law enforcement. The reason their useful is because they can help them to determine whether or not they ought to investigate a specific person even further in order to see if they are a likely suspect. This is basically useful for the investigation process, even if it is not necessarily something that will hold up in court.
Recently, I decided that I wanted to learn more about the lie detector test, and so I searched on the internet in order to see what I could find in regards to its history. I stumbled upon http://www.liedetectortest.com, which had a wealth of info about the history and use of the lie detector test. There have been a number of ways in which this test was used to bring about justice, and it is something that private investigators have also used over the years for handling non-criminal matters. There really is a long history regarding the test. Interestingly, the test was invented by the same man who created the comic book character Wonder Woman. This is pretty interesting considering the fact that Wonder Woman herself had a “lasso of truth” that she would use to force villains to tell the truth. This is just an interesting anecdote that a lot of people are not aware of.
The test itself basically focuses on certain brain and body responses to certain questions that are being asked in order to attempt to determine whether or not the person answering the questions is being completely honest. Unfortunately, we can’t determine beyond a reasonable doubt that someone is lying or telling the truth based solely upon these reactions. There have been people over the years who have been successfully able to beat the lie detector test simply by controlling these brain and body responses, and there have been others who have told the truth under stress, which has led to the test determining that they were lying.
Even though the test is not completely hard science, it does serve certain purposes within many fields, including law enforcement. Even if it can’t prove whether or not someone is lying beyond a reasonable doubt, that does not mean that it is completely useless. There are many reasons why a lie detector test might be used, and I find it fascinating that it is still used to this day in a number of cases.