How would society change if lie-detection pills were readily available?

The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific concepts

How would society change if a cheap and reliable packet of

How would society change if a cheap and reliable packet of lie-detection pills was available from any local chemist? (By reliable I mean as good as fingerprints or eye scans.)

Robin Benson, Southampton

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