CCTV cameras are now commonplace in cities. But have people who are caught on camera actually given their consent?
, the humans seemed to be winning. The Metropolitan Police’s squad of “super-recognisers” was lauded for its uncanny ability to recall faces in video footage. The officers spotted sex-offenders in crowds of thousands and nabbed a thief who had pinched more than £100,000 of luxury goods. Technology was not nearly as reliable. One of the super-recognisers identified 180 of the 4,000 suspects captured on camera during riots in 2011, whereas software spotted only one.
Several wonk shops are being set up to examine the ethics of algorithmic technology, including one at Oxford backed by a £150m donation from Stephen Schwarzman, the boss of Blackstone, a private-equity firm. The Centre for Data Ethics and Innovation, a new government-funded agency, is likely to propose a code of conduct to regulate cops’ use of technology, says Roger Taylor, its chairman, who acknowledges the need to act “very quickly” to close any gaps in oversight.
Third, it could prove discriminatory. Since some facial-recognition technology is best at identifying white faces, it could throw up more erroneous “matches” for non-white people, making them more likely to be the subject of unwarranted police attention. Finally, it risks compromising the principle that justice must be seen to be done. If suspects cannot understand how an algorithm reached a decision, they might find it harder to challenge.
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