Boy racers have been targeted in a campaign aimed at cutting down on speeding cars in a Forest of Dean town.
Plain-clothed officers and unmarked cars took part in the police operation in Coleford.
One driver received a seizure notice, which means his car could be seized if he reoffends. Four anti-social behaviour notices were also issued.
"We want drivers to know this kind of behaviour will not be tolerated," a police spokesman said.