Identity Verification Device

“The soldiers were taking hair samples and slotting people’s passports. Chia assumed that was to prove you really were who you said you were, because your DNA was there in your passport, converted into a kind of bar code.” [William Gibson, Idoru (1996)]

Here the design of an Identity Verification Device that is mentioned in in the William Gibson novel 'Idoru'. The staff at the boarding gate checks the passengers identity scanning the passport into a device, and taking samples of hair, to find a match between the DNA data stored into the passport and the one just sampled from the hair.