Switch off your phone before driving Mobile phones provide security and help in an emergency BUT: Research shows that if you use your mobile phone while driving: You can not help being distracted by a phone call or text message. You are four times more likely to crash Your reaction times are worse than if you drive under the influence of alcohol.

Despite this people still use their mobile phones whilst
driving but:

• It is illegal to use a hand held phone when driving. You could receive
  a £60 fine and three penalty points on your licence.
• You can also be prosecuted for using a hands free mobile phone if you are not in proper control of your vehicle. The penalties are the same as for using a hand held phone.
• The penalties for driving carelessly or dangerously when using a phone can include disqualification, a large fine and up to two years imprisonment.
• If you are an employer you can be prosecuted if you require employees to make or receive calls when driving.

Do's and Dont's of mobile phone use in cars

• Don’t use the phone while driving – even if you are stopped at traffic lights or in a queue of traffic.
• Do use voice mail, and put the phone out of reach.
• Do stop in a safe place to use your phone (not on motorway hard shoulders)
• Do take regular breaks on long journeys. If necessary use the phone during the break.