Police are to take to the roads in the coming weeks armed with a new weapon in the fight against drug-drivers.
Officers are to begin using equipment which can establish immediately whether a driver is under the influence of drugs.
Leicestershire is the latest force to obtain the handheld devices, which can instantly detect the presence in saliva of traces of cocaine or cannabis – the most common substances in 'drug driving' cases.
Currently, officers who suspect a driver has used...
