Three family members have been arrested in the Welsh city of Swansea on suspicion of using laser jammers to interfere with speed cameras.
Police have sized and impounded five cars that are thought to have been fitted with the devices.
BBC News reports that a 63 year man and two women aged 57 and 18 were arrested by Dyfed Powys Police on suspicion of committing an act with intent to pervert the course of justice.
According to BBC News, the cars seized were a Mercedes-Benz, a Vauxhall Astra and three Volkswagen Polos.
Police and safety camera officers use beams of invisible laser light to take speed readings of passing traffic however the jamming devices detect the light and activate their own lasers in an attempt to overwhelm the equipment.
All three suspects have been released under investigation, reports BBC News.