"But the system involves access to an enormous wealth of passenger data, from travel history to criminal records.
Some experts have therefore argued the facial recognition system would be a violation of individual privacy, raising an ethical dilemma.
Biometrics Professor Katina Michael told The Guardian: “We are steam-training right through all of these technological transitions and we’re not really thinking about the ramifications."
“Even if the system works, is that ethical to impose this system on the entire populace, without even asking them?
“I see the perceived benefit, but what I do know is that there will be real costs, human costs, not only through the loss of staff through automation, but also through discrimination of people who may appear different.”
Airports aren’t the only place we might see biometric technology in place of traditional identification methods.
Some 60 per cent of Britons would trust their banks to safely store biometric information including fingerprint, iris and facial recognition.