There are a number of factors which make Caddick Davies the ideal option for anyone facing a motoring charge in England or Wales:
Drug Driving Solicitors
Caddick Davies are specialist motor defence solicitors who have an established reputation for successfully defending motoring prosecutions, including a range of drug driving offences.
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Being charged with a drug driving offence is a frightening experience. Whether you were stopped at the roadside, asked to provide a blood sample at the police station, or have received a letter telling you that you are being prosecuted, we understand the anxiety you are feeling right now. You may be worried about losing your licence, your job, or your reputation.
At Caddick Davies, our specialist drug driving solicitors deal with these cases every single day. We are not here to judge your circumstances or pressure you into any decisions. We are here to listen, to explain clearly where you stand, and to make sure you understand every option available to you. Many people charged with driving under the influence of drugs assume the worst, but a charge does not always lead to a conviction. There may be a defence, a procedural error, or a way to reduce the impact on your life.
This page covers drug driving law under the Road Traffic Act 1988, the two different types of drug driving offence our solicitors defend, the specified drug driving limits for illegal and prescription drugs, the penalties and disqualification you face, how a drug driving charge and prosecution works, and the defences we use to protect our clients. If you want to talk through your situation with someone who understands, call us on 0333 443 2366 for a free, no-obligation conversation.
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Expert Drug Driving Solicitors With Nationwide Motor Offence Coverage
Our drug driving solicitors represent drivers in courts across England and Wales. Led by Neil Davies, one of the UK’s most experienced motoring offence solicitors, our team brings specialist knowledge of drug driving law and the technical evidence involved in these cases.
We have handled thousands of motor offence cases and understand how unsettling it is to face a criminal charge. Every member of our team will treat you with respect and take the time to explain things in plain English. You can meet our people to find out more about the solicitors who will be working on your case. We are proud of the trust our clients place in us, reflected in over 1,700 five-star Trustpilot reviews. We are regulated by the Solicitors Regulation Authority (SRA number 611830).
Defences Our Drug Driving Solicitors Use
We understand that being charged with drug driving can feel hopeless, but there are genuine defences available and our drug driving offence solicitors have the experience to identify them. We examine every piece of evidence in your case and will always be straight with you about whether a defence is realistic.
The statutory medical defence applies if you were taking prescription drugs as directed by your doctor and had no reason to believe they would impair your ability to drive. If your GP prescribed the medication and did not warn you about driving, this may provide a complete defence to a Section 5A charge.
Procedural challenges are another avenue our solicitors regularly pursue. The process for collecting, storing and analysing a blood specimen is strict, and errors do occur. If the sample was contaminated, improperly stored, or the analysis was flawed, the evidence may be inadmissible. We also look at whether you consumed the substance after driving but before the test, whether the testing equipment was properly calibrated, and whether medical conditions may have mimicked the signs of unfit driving or reduced your capacity to provide a specimen.
We will never encourage you to challenge a drug driving charge unless we believe there is a genuine prospect of a better outcome. If the evidence is strong, we can still help by presenting mitigation to reduce the sentence and supporting you through what can be a difficult process.
Drug Driving Law Under the Road Traffic Act 1988
Drug driving law in the UK is governed by the Road Traffic Act 1988. There are two separate offences that our road traffic offence solicitors regularly defend, each with different elements the prosecution must prove. Understanding which offence you have been charged with is essential, and we will explain this to you clearly when we review your case.
Section 5A of the Road Traffic Act was introduced in March 2015 and created the offence of driving with controlled drugs above a specified limit. This is similar to the drink driving limit in that the prosecution only needs to show that you had a specified drug in your blood above the legal limit. They do not need to prove impairment.
Section 4 covers the older offence of driving whilst unfit through drugs, where the prosecution must prove that your ability to drive was actually impaired by a drug. This section applies to any substance, including legal medications and over-the-counter drugs when driving.
Driving With Controlled Drugs Above a Specified Limit
Under Section 5A, it is an offence to drive a motor vehicle on a road or public place with a specified controlled drug in your blood above the prescribed limit. The prosecution does not need to prove that your driving was affected. If the blood sample shows a reading above the legal limit for any specified substance, the offence is technically complete.
This offence covers 17 specified drugs, split into 8 illegal drugs and 9 prescription drugs. The limits for illegal drugs are set at very low levels, effectively a zero-tolerance approach. The limits for prescription drugs are set at higher therapeutic thresholds to allow for legitimate medical use.
Driving Whilst Unfit Through Drugs and Impairment
Under Section 4, the prosecution must prove that your driving was impaired by a drug. This is a more complex offence to prosecute because the evidence of impairment often relies on the observations of the arresting officer, the results of a field impairment test, and sometimes CCTV footage.
This offence can involve any drug, including prescription medications and even over-the-counter remedies. The prosecution must establish that the drug affected your ability to drive properly, not simply that a substance was present in your system.
Drug Driving Limits for Illegal and Prescription Drugs
Understanding the drug driving limits is important because the level found in your blood sample determines whether the prosecution can proceed under Section 5A. We will always check whether the level in your case was genuinely above the legal limit for any specified substance and whether the testing procedure was properly followed.
Specified Limits for Illegal Drugs
| Drug | Limit (micrograms per litre of blood) |
|---|---|
| Cannabis (THC) | 2 µg/L |
| Cocaine | 10 µg/L |
| Benzoylecgonine (cocaine metabolite) | 50 µg/L |
| Ketamine | 20 µg/L |
| LSD | 1 µg/L |
| MDMA | 10 µg/L |
| Methamphetamine | 10 µg/L |
| Heroin (6-MAM) | 5 µg/L |
The limits for illegal drugs are deliberately set near zero. Even trace amounts can result in a reading above the threshold.
Specified Limits for Prescription Drugs
| Drug | Limit (micrograms per litre of blood) |
|---|---|
| Clonazepam | 50 µg/L |
| Diazepam | 550 µg/L |
| Flunitrazepam | 300 µg/L |
| Lorazepam | 100 µg/L |
| Methadone | 500 µg/L |
| Morphine | 80 µg/L |
| Oxazepam | 300 µg/L |
| Temazepam | 1,000 µg/L |
| Amphetamine | 250 µg/L |
If you take prescription drugs as directed by your doctor and the level in your blood is within the therapeutic range, you may have a statutory medical defence. We will explain how this works if it applies to your case. These higher thresholds exist because prescription drugs taken at therapeutic levels are not expected to impair driving ability.
Penalties and Disqualification for Drug Driving
We know that understanding the potential penalties is one of the first things you will want to know, so here is a clear overview. A drug driving conviction carries a mandatory minimum 12-month disqualification from driving, an unlimited fine, and up to 6 months in prison. You will also receive a criminal record and a DR80 endorsement that stays on your driving licence for 11 years.
If you have a previous drink driving or drug driving conviction within the last 10 years, the minimum disqualification increases to 36 months. The court can also impose a community order or custodial sentence depending on the severity of the offence.
Drug driving penalties are serious, but they are not inevitable. Our role is to examine every aspect of your case and identify any opportunity to avoid or reduce these penalties for drug driving. If you have already been convicted and want to challenge the outcome, find out more about appealing a driving conviction. We will always give you an honest assessment so you can make informed decisions without feeling pressured.
How a Drug Driving Charge and Prosecution Works
Understanding the process can help reduce some of the uncertainty you may be feeling. Here is what typically happens in a drug driving case.
Roadside Testing and the Blood Sample Procedure
If the police suspect you of drug driving, they may ask you to perform a field impairment test at the scene. This involves a series of physical tests designed to assess coordination and balance. They may also use a roadside swab test that can detect cannabis and cocaine.
If the initial tests give cause for concern, you will be arrested and taken to a police station where a healthcare professional will take a blood specimen. This sample is then sent to a laboratory for analysis. The Crown must prove that the specimen was taken correctly, stored properly and analysed accurately. Errors at any stage can undermine the claims made against you.
Failing to provide a specimen without a reasonable excuse is a separate offence that carries the same penalties as drug driving itself. If you had a medical reason for being unable to provide a specimen, our solicitors can advise on whether this amounts to a reasonable excuse.
Drug Driving Frequentyly Asked Questions
Can I Be Convicted of Drug Driving for Taking Prescription Medication?
You can be charged under Section 5A if a specified prescription drug is found above the legal limit in your blood. However, you have a statutory medical defence if you took the medication as prescribed and had no reason to believe it would impair your driving. Our drug driving solicitors will assess whether this defence applies in your case.
What Happens if I Refuse to Provide a Blood Sample?
Failing to provide a specimen without a reasonable excuse is a separate offence that carries the same drug driving penalties as the underlying charge. If you had a genuine medical reason, such as a needle phobia or a condition that made it physically difficult, our solicitors can advise on whether this constitutes a reasonable excuse.
How Long Does a Drug Driving Conviction Stay on My Licence?
A DR80 endorsement for drug driving remains on your driving licence for 11 years from the date of conviction. The driving ban itself will be a minimum of 12 months, or 36 months if you have a previous drink or drug driving conviction within 10 years. After your ban, you may be eligible to apply for early removal of a driving disqualification.
Will I Go to Prison for Drug Driving?
A custodial sentence is possible but not common for a first offence. The maximum is 6 months’ imprisonment, but most first-time offenders receive a fine and a driving ban. The court will consider factors such as the level of drugs in your system, whether there was an accident, and your previous record.
What Is the Difference Between the Two Drug Driving Offences?
Section 5A is about driving with drugs above a specified limit, regardless of whether your driving was affected. Section 4 is about driving whilst unfit through drugs, where the prosecution must prove actual impairment. Our solicitors will explain which offence you are facing and what it means for your defence.
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