But The Times reports ministers have been reviewing a trial at Heathrow Airport, which began in 2017, of 3D scanners already in use at US airports that allow staff to zoom in on a bag’s contents and rotate the images for inspection.
The BBC added that security restrictions for liquids and laptops in carry-on luggage could be axed from mid-2024.
Heathrow’s chief executive, John Holland-Kaye, told The Times: “We are slowly rolling them out.
“We have just started the expansion of the security area in Terminal 3, which will have more CT scanners and have a deadline of mid-2024 from the [Department for Transport].
“By then, the normal passenger experience will be that liquids stay in bags.”
The Times said those failing to remove items from their bags or traveling with large bottles of liquids is the biggest cause of delays at airport security.
Boris Johnson announced plans while Prime Minister in 2019 for all major UK airports to introduce new 3D cabin baggage screening equipment.
Government officials said at the time that once in place, the 100ml liquid limit may no longer apply.
The equipment was to be rolled out over the next several years, with the Department for Transport requiring all major UK airports to have the technology by December 1, 2022.
But that deadline was affected by the pandemic, with passenger numbers dented due to travel restrictions in place across much of the globe.
Figures from the International Air Transport Association for September showed passenger traffic levels have only reached 73% of pre-Covid levels.
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