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Furthermore, the possibility of training oneself to deceive the system, although very challenging, remains a consideration. Experts have the power to call tests invalid if there are suspicions of countermeasures or irregularities.
Conclusion
Polygraph tests continue to be a valuable investigative resource, especially in early stages of criminal investigations. While they offer insights and can help guide further inquiry, their scientific limitations prevent them from serving as conclusive evidence in court. As technology and scientific understanding evolve, ongoing debate about their use and reliability persists, emphasizing the need for cautious interpretation and complementary investigative methods.