Schoolchildren have been recruited by Devon and Cornwall Police to help with a speeding initiative.
Speed Watch involves the community, under police supervision, using speed guns and stopping and talking to drivers caught speeding.
Primary school pupils will interview drivers using questions designed to encourage them not to speed.
Sergeant Gary Watts said the children would ask "gruelling questions" of the motorists.
Sgt Watts said: "By involving the community, the public can see first-hand the good work being done to address speeding problems.
"Speeding motorists can be faced with gruelling questions from local children such as, 'how would you feel if you had run me or my friend over?'
"This can be hugely impactive and provides the motorist with an opportunity to modify their behaviour before it's too late."
It is hoped that as well as educating the drivers the initiative will also teach pupils about speeding.
Pc Niki Lawson, launched the campaign in Lewannick, Cornwall, following a pilot scheme in Bude.
She said: "It empowers the children to get involved with the local community and solve problems within their community.
"They monitor the speeds of the vehicles and inform me by one of our radios, I pull them [driver] in and assess whether the driver is suitable to speak to another group of schoolchildren.
"Drivers have said they found it more impactive speaking to the children than getting a ticket."
As well as primary school children, police community support officers and community groups will also be involved.