A total of 29 drivers were caught on camera while using a mobile phone in a one-day police operation on Merseyside.
Drivers are fined and get three penalty points
Images of those caught using their handsets while driving have been published on the force's website as part of their name and shame campaign.
Offenders are issued with penalty points and fined £60.
In the first phase of Operation Mobile Cam in Sefton earlier this year police stopped 202 people using their hand-held phones behind the wheel.
Ch Supt Mark Matthews, of Merseyside Police, said: "We are very pleased with the success of these operations, as they continue to reinforce the message that driving while using a phone is something Merseyside Police will not tolerate.
"Our overall aim is to deter people from committing this offence and this is why the force publicise the operations in advance.
"We hope, as a result of the action we are taking, we will find less people breaking the law over a period of time and ultimately improve safety on the region's roads."
New laws which prevent the use of hand-held mobile phones in vehicles came into force in February.