The masking fluid is an invisible spray to confront the criminals in a British city

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British police discovered water pistols equipped with invisible fluid, where the defendants can be identified through, and remain on the skin and clothes and vehicles for three months.

The liquid is lighted under ultraviolet light, so suspects can be examined at a police station and linked to a specific crime before they are tried. Police spray water on suspects when they commit a crime and remain on their faces or any other open skin, as well as their car and clothes for three months , According to the British newspaper Daily Mail.

The liquid is an invisible material for the naked eye, but it appears under ultraviolet light. Scanners are available at police stations to identify criminals. Each packet is used only once and has a unique symbol. It can then be attached to the box used by the officer. The crime itself.

Police are planning to use the technology to target motorcyclists in Kanok Chase, Britain, and have the natural nature reserves. "The coded liquid is used to accurately distinguish criminals with eight to 10 yards," said Gary Higgins, security services director at SmartWar.

"It is invisible to the naked eye, but it shines under ultraviolet light. It is impossible to remove the liquid and it will remain on the skin and hair for weeks or months, even with repeated washing."

The Metropolitan Police in France, using the smart liquid to identify motorcyclists for nearly two years, began robbing and assaulting criminals on vehicles, and about 2225 crimes between June 2017 and May 2018, equivalent to more than 60 Every day, leading to the recall of London's French experience to Britain.

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