Police in the UK have reportedly obtained a spy tracking bracelet set for sale, which can be worn by the public.
The bracelet has been spotted in a police station and is reportedly set to be available for sale within a week.
Police have now issued a warning that the bracelet is illegal in the country.
It is illegal to carry out surveillance without the permission of a law enforcement officer and is a violation of the privacy of others, according to police.
Authorities have also issued a blanket warning that anyone caught wearing the device will be detained.
According to The Independent, the bracelet has already been sold to an undercover police officer.
A spokeswoman for the Metropolitan Police said: “We can confirm that this is an item of interest to the Met’s intelligence and security team, who are investigating the sale.”
Police said they would not be issuing any further statements on the case.
This story has been updated to include additional information about the bracelet.