Can a ‘lie detector’ tell us the truth about Tangmo’s death?

23 Sept 02:28 Key points summarised by AI

Police are utilizing polygraph tests in the investigation of actress Tangmo's death due to conflicting accounts from witnesses, aiming to ascertain if her death was an accident or foul play.
Polygraphs are a controversial investigative tool, frequently criticized by researchers and experts for their inherent unreliability in accurately determining truthfulness.
Courts, including the Thai Supreme Court, have repeatedly rejected polygraph evidence, citing its subjective nature and inability to differentiate between physiological changes caused by lying versus anxiety.
Despite their use in past high-profile Thai cases, the Supreme Court has ruled that polygraph results are insufficient to definitively prove guilt, highlighting the test's limitations and potential for manipulation.

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