Police used unmarked cars for their patrols
Police in Devon and Cornwall have said a campaign targeting bad and dangerous drivers has helped cut road casualties and injuries.
Operation Vortex saw a dedicated team of officers in unmarked cars and a motorcycle patrol several major routes.
March 2007 saw 41 deaths and serious injuries on the force area's roads. There was a 12% drop to 36 in 2008.
Slight injury collisions were down by 19%, from 415 in March 2007 to 336 in March this year.
About 1,000 motorists were stopped as part of the operation in March, with 831 having action taken against them.
Officers from the force's roads policing unit patrolled a number of major routes across both counties, including the M5, A30, A38 and A361.