As the Ketan Agarwal murder investigation enters a critical stage, Pune Police have initiated the process for conducting polygraph (lie detector) tests on the accused. But why is such a test necessary ...

However, polygraph tests are more complex than that. Even when an individual is innocent, physiological responses can be ...

The available evidence indicates that in the context of specific-incident investigation and with inexperienced examinees untrained in countermeasures, polygraph tests as currently used have value in ...