A device which alerts drivers to the proximity of police has come under scrutiny.
Officials in the UK are considering if the Target Blu Eye device is in breach of the Wireless Telegraphy Act which governs the use of radio communications.
Target Blu Eye costs £999. It can detect the presence of an emergency vehicle more than half a mile distant by picking up encoded radio signals.
Flashing lights, ranging from green to amber to red depending on proximity, then warn the driver of a police car or helicopter.
Its distributor claims it will help prevent accidents by letting drivers know that nearby emergency vehicles are likely to be driving very fast.
But the device faces opposition based on fears that it will be used by criminals and speeding motorists.
AA spokesman Luke Bosdet said: “The only person who will have one of these fitted to their cars is the type of person who is trying to dodge the law.”
Similar concerns were raised about mechanisms which detect the location of speed traffic cameras, which remain legal although some would like these also to be banned.
A Home Office spokesman said: “We continually monitor new technologies to assess their impact on the ability of the police and law enforcement agencies to protect the public.”
