Polygraph tests are unique pieces of equipment that measure certain physiological features to determine whether or not a criminal is being truthful. Do you think

polygraph tests should be used in modern investigations? Why or why not?

Introduction

Lie detector tests, commonly known as the polygraph tests, are one of the most discussed topics with both supporters and opponents. This controversial topic in court trials is also not free of mistakes. Being the main controller of the body, these examinations use the physical forces that includes heart rate, blood pressure, and sweat to match them with lying. Regardless of this, the specialists still argue about the lack of scientific accuracy in these methods, and most of the research shows these methods to be ineffective. However, the scientists keep on issuing concerns about the reliability of the tests, and additionally, research results prove the tests are not valid as required.

Polygraph for investigation

Various factors raise questions about the credibility of polygraph testing, including the human factor, the development of technology, and the nature of the issue itself. Indeed, such signals as the environment of the examinee's concentration, arousal, stress, or doubt can all stand between the assessor's mind and the reading of their facial expressions and body language. Moreover, the observer's own prejudices towards the examinee may also contribute to examining the results. However, on the contrary, the side of the polygraph that has a coercive feature is acutely ethical in terms. The individual ending up with unyielding uncertainty and insecurity as the result of the investigative proceedings can be triggered by the danger of wrongdoings and the control over fate. This could lead one to declare themselves guilty to avert the consequences. This, however, does not only question the viability of the institutional framework and causes a decline in the effectiveness of justice delivery but also makes the victim suffer profound psychological traumas even if the story somehow turns out to be false.

Although the concern raised about the polygraph test's validity is a significant question, they are still the most in-demand tests in law enforcement work and occupational screening. This is the point presented by proponents who argue that lie detectors are not based on accurate, objective data. However, they are helpful tools when appropriately applied along with evidence-gathering procedures. On the one hand, it is imperative to be mindful of the inadequacies and possible risks in concluding their analysis, which may lead to misinterpretations.

Conclusion

Hence, polygraph tests continue to be a controversial and arguable subject of modern criminal procedures. Nevertheless, they can occasionally draw our attention to the issues of truthfulness. However, hundreds of scientific studies and numerous experts have debunked their reliability and validity. Hence, the polygraph can have a role to play in certain investigative scenes; however, its efficiency needs to be assessed critically, and alternatives to the justice administration should be pursued to make it impartial and effective.