Most mobile phone offences are dealt with by way of 3 penalty points and a £60 fixed penalty notice. If the matter proceeds to court however, the fine can be as much as £1,000 or £2,500 if you were driving a bus, coach or any heavy goods vehicle. It is essential the Court has evidence that the phone was being held by the driver.
If the use of the mobile phone has caused or contributed to an accident, the police may decide to prosecute for driving without due care or dangerous driving in order to secure a more severe punishment.
Regulations For Hand-Held Devices
The use of a hand-held phone or device whilst driving is prohibited. A hand-held device is something that "is or must be held at some point during the course of making or receiving a call or performing any other interactive communication function". A device is regarded to be 'similar' to a mobile phone if it performs an interactive communication function by transmitting and receiving data. If you are stationed at a set of traffic lights, drivers are still prohibited to use hand-held mobile phones.
Exemptions apply to drivers who use the hand-held mobile phone to make 999 calls in genuine emergencies when it is unsafe or impractical to stop.