possible new offence of 'drug driving'

Plans to reduce the number of incidents of 'drug driving' feature in the Government's New Year road safety strategy. The Government seems concerned that although the police have proved willing and able to prosecute drivers who drink and drive, they have had a tougher job prosecuting motorists alleged to have taken other drugs and then driven. This follows the trialling of so called 'drugalysers' last year, which have yet to receive type approval from the Home Office.

A panel of experts will be asked to consider the scientific case for a new criminal offence of driving a vehicle having taken an illegal drug.

It is an offence to drive a vehicle whilst unfit through drink or drugs although to prove that offence the police have to carry out a number of tests first, such as requiring the motorist to walk in a straight line for a set distance. The motorist can then be required to provide a specimen of blood for analysis. The police also have to show that the motorist was unfit to drive, which requires evidence that the motorist could not drive properly. Impairment can also be demonstrated by there being a high proportion of alcohol in the blood sample.

Blake Lapthorn's Motoring Offences team has represented many individuals charged with driving whilst unfit through drink or drugs and it is always important to consider whether the tests have been conducted properly if at all. In addition, the police will have to prove that the motorist was incapable of driving the vehicle.

The expert panel will be asked to examine the evidence basis for any new criminal offence including how it could be defined and whether it is possible to prescribe levels for the point at which different drugs impair a driver's reactions and performance behind the wheel. This is likely to be a difficult task. In order to appreciate why, the distinction between 'drink driving' and 'drug driving' needs to be considered.

The offence of drink driving is committed where a person drives a mechanically‑propelled vehicle having consumed in excess of 35mg/100ml alcohol in breath or 80mg/100ml in blood. This is an easily identifiable standard because only one drug, alcohol, is being analysed. But the point about 'drug driving' is that there are lots of drugs out there and different drugs affect different people in different ways. A certain quantity of drug A may be very harmful but the same quantity of drug B may be far less harmful. A solution may be possible but it will not be easy.

A group of MPs has previously suggested that the police ought to be allowed to conduct roadside drug tests as substances can be out of an individual's system by the time that they arrive at the police station. However this is true of alcohol as well and at present there are no plans to reform the drink driving laws with that in mind.

Road safety is of paramount importance to us all. The stigma associated with drink driving has in our view become far stronger in the last 10-15 years. The panel will have a difficult task in identifying the legal limit for specific drugs although that did not prove problematic in the end in relation to alcohol. It is important to recognise that the process will take time, which must be afforded to the panel so it is able to reflect and properly consider whether such an offence can be drafted, because ill thought out legislation will not benefit anyone.

For more information please contact Tim Williamson, a solicitor in Blake Lapthorn solicitors' Motoring Offences team in Oxford on 01865 253286 or tim.williamson@bllaw.co.uk.