NEW legislation aimed at dealing more effectively with those who drive while under the influence of drugs is a welcome, if long overdue, addition to our statute book.

It means police will from today carry equipment which makes roadside testing for drug-driving much easier.

Although powers have previously existed to prosecute under the offence of being unfit for driving while under the influence of drugs, the new laws set out much clearer limits.

The change is something many, including this newspaper, have called for, and it means drivers who are shown to be over the limit for both illegal and some powerful legal drugs, will face a minimum 12 month driving ban.

Which is why it is vitally important that those using prescribed medication such as methadone and diazepam, which are also included, are aware of what they can take.

The consequences of driving while under the influence of any substance – legal or illegal – are potentially horrific, and anything which cuts down on the risks of this happening is welcome.

But while tougher laws and improved police powers are one thing, the biggest factor still remains the perception of certain motorists that they can drink more than most people and still drive, or they can smoke cannabis and not have their concentration impaired.

The simple truth is any of these substances reduces reaction time and will affect the ability to drive.

Until people realise this, the problem will persist. But at least measures like this will help to take those who insist they know better than the law out from behind the wheel.