Drug driving in Italy: the rules changed in 2024
Driving after taking drugs is an offence distinct from drink driving, punished at the level of the gravest alcohol band, and the testing works in an entirely different way. A reform of the Highway Code in 2024 changed the wording of the provision, and what the prosecution now has to prove is the central question in every one of these cases.
The reason is simple. Alcohol produces a figure that places the driver in a band, while substances remain detectable in the body for days or weeks after any effect has passed. A positive result therefore does not establish that the person was affected while driving, and that gap between detection and effect is where the defence lies.
Avv. Massimo Romano — Ordine degli Avvocati di Napoli n. 14553, patrocinante in Cassazione dal 23/10/2015 — Roma, Via Avicenna 97, 00146 · Milano, Via Giuseppe Pecchio 3, 20129 · Napoli, Corso Umberto I 237, 80138 — +39 335 669 3954
In brief
- The offence sits at the level of the gravest alcohol band, so the consequences are those of the most serious drink-driving case rather than of a minor traffic matter.
- Substances stay detectable long after any effect has gone, which means a positive analysis is not by itself proof of a state affecting the driving.
- Where the provision required proof of an actual state of impairment, a positive test alone was insufficient, and the change of wording in 2024 moved that debate into every court in the country.
- Roadside screening by saliva or other non-invasive means is a screening step and not evidence of the offence in itself.
- The confirmatory analysis carried out by a qualified facility is what constitutes the evidence, which makes the qualification of that facility a proper subject of challenge.
- Refusal to be tested is punished as the offence itself, so refusing is not the safe option it appears to be.
- Where blood is taken in hospital, consent and the chain of custody of the sample both matter, and both are regularly contested.
- The licence measure follows alongside the criminal penalty, taking the form of a driving ban where the licence was issued abroad.
- The vehicle can be confiscated where it belongs to the driver, which does not apply to a rented vehicle.
- The interval between driving and testing, and whether the analysis distinguishes the active substance from metabolites that persist, are usually the most productive lines of defence.
- Medicines lawfully prescribed elsewhere can produce a positive result, so the prescription has to be documented and ideally carried with the medication.
Why it is not like alcohol
Alcohol has a number. A breath reading places the driver in a band, and the band determines the offence. Drugs have no equivalent: substances remain detectable in the body for days or weeks after any effect has passed, so a positive result does not establish that the person was affected while driving.
That gap between detection and effect is the whole defence, and it is why the 2024 reform matters. Where the offence required proof of an actual state of impairment, a positive test alone was not enough. The change to the wording has moved that debate, and it is being argued in every court in the country.
How testing works
| Step | Content | Note |
|---|---|---|
| Roadside screening | Saliva or non-invasive testing | A screening device, not evidence of the offence |
| Confirmatory analysis | Carried out by a qualified facility | This is the evidence |
| Refusal | Punished as the offence itself | Art. 187 Highway Code |
| Blood taken in hospital | Consent and chain of custody both matter | Frequently contested |
| Licence | Suspension, or a driving ban for a foreign licence | Alongside the criminal penalty |
| Vehicle | Confiscation where it belongs to the driver | Not for rental vehicles |
The most productive line of defence is usually technical rather than legal: the interval between driving and testing, the qualification of the facility, the chain of custody of the sample, and whether the analysis distinguishes the active substance from metabolites that persist long after any effect.
Prescribed medication
A number of medicines lawfully prescribed elsewhere contain substances that produce a positive result. Having the prescription is not a complete answer but it changes the case entirely, and it has to be documented — ideally carried with the medication, as noted in the guide on conduct that surprises visitors.
Drink driving and drug driving are treated as a pair and work quite differently, so the comparison below separates them.
| Aspect | Alcohol | Drugs |
|---|---|---|
| What the test produces | A figure that places the driver in a band | A detection, with no equivalent scale |
| Relationship between result and effect | The reading reflects the state at the time | Detection can long outlast any effect |
| What the prosecution must establish | The band the reading falls into | The question reopened by the change of wording |
| Where the analysis is done | At the roadside, with an evidential instrument | By a qualified facility, after a screening step |
| Main line of defence | Calibration, timing and the recorded values | The interval, the facility and metabolites that persist |
What follows
The criminal penalty is the least of it for most people. The licence measure, the effect on insurance, and — where an accident occurred — the aggravated offences of causing injury or death while driving, dealt with in the guide on road accidents, are what actually bite.
For a foreign licence the position is the same as for alcohol: an Italian court cannot suspend it but can prohibit driving in Italy, and whether that follows you home depends on your own licensing authority. The framework is in the guide on drink driving.
Frequently asked questions
Is a positive test enough to convict me?
That is the central question after the 2024 reform. Substances remain detectable long after any effect, and what the prosecution must prove is being argued in courts across the country.
What happens if I refuse the test?
Refusal is punished as the offence itself, in the same way as refusing a breath test for alcohol.
I have a prescription for the medication.
It is not a complete answer but it changes the case. It should be documented and, ideally, carried with the medication.
Will I lose my licence?
An Italian court cannot suspend a foreign licence but can prohibit you from driving in Italy. Whether that follows you home depends on your own authority.
If you have tested positive
The interval between driving and testing, and what the analysis actually measured, decide these cases. First contact is free and covered by professional privilege.
Who gets stopped, and why it matters to them
The roadside drug test catches people for whom the law is hard to see: those who took something days before, those who take medication that is lawful, and those who believed that a night's sleep had cleared everything. The people who reach this page are rarely the ones the law was meant to target, and they are often shocked to learn that a positive result is the start of a separate procedure.
- The visitor in a rental car. A tourist or business traveller is stopped at a check, taken for a test, and told that a result is positive for a substance consumed well before the journey. The car, the keys and the onward trip are all in question.
- The resident with a prescription. A person who takes medication for a condition is tested and finds that a lawful substance produces a positive result. The explanation exists, but it needs to be documented.
- The driver who lives off the road. A lorry driver, a courier or a taxi driver depends on the licence for income, and a positive result threatens the livelihood immediately.
- The relative at home. A parent or partner receives a call that the person has been stopped and tested, and wants to know whether this is a minor matter or something serious.
The central point, for all of them, is that drugs have no number. Unlike alcohol, a result does not place the driver in a band; substances remain detectable long after any effect has passed, and the gap between detection and effect is where the defence lives.
The testing process has stages that carry different weight, and the table sets out what each one is.
| Step | What it is | Note |
|---|---|---|
| Roadside screening | Saliva or other non-invasive testing | A screening device, not evidence of the offence |
| Confirmatory analysis | Carried out by a qualified facility | This is the evidence in the case |
| Refusal to be tested | Punished as the offence itself | Not a way of avoiding the charge |
| Blood taken in hospital | A sample obtained in a clinical setting | Consent and chain of custody both matter |
| The licence measure | Suspension, or a driving ban for a foreign licence | Runs alongside the criminal penalty |
| The vehicle | Confiscation where it belongs to the driver | Not applied to a rented vehicle |
Licence, car hire, insurance and work after a positive result
The criminal proceeding is only part of what follows a positive test. The practical consequences arrive faster than any court date.
The licence is the main concern. A driver may be told that it is suspended or withdrawn pending the outcome, which can end work for anyone who drives for a living and complicates family life for anyone else. A foreign licence raises further questions about how the Italian decision is recorded and whether it follows the person home.
Money and logistics come next:
- Car hire: the rental company may charge for a vehicle that is held or damaged, and may report the incident to its insurer. Read the hire agreement for what it says about substances and drivers.
- Insurance: insurers may refuse to cover an accident that involved a driver who tested positive, and may seek to recover costs from the driver.
- Employment: an employer who learns of a positive test may suspend the driver or end the contract, particularly where driving is part of the job.
- Travel: a visitor may be unable to continue a journey by car and must arrange another way home.
- Reputation: a record of this kind can affect visas, occupational registration and the ability to work in regulated roles.
The family can help by working out what depends on the licence, who needs to be told, and what alternative transport exists. The lawyer will ask the same questions, because the practical stakes shape the strategy.
Decisions at the roadside and in the days after
The roadside is not the place for long thought, yet some choices are made there that cannot be remade later. Each has a price.
- Accept the sample or refuse it. Accepting produces a result that may or may not show effect. Refusing carries its own consequences, which are not necessarily lighter. Ask the officers to explain, ask for an interpreter if you need it, and ask to speak to a lawyer before deciding if the situation allows.
- Mention medication, or keep quiet. A lawful prescription is a legitimate explanation and should be mentioned, but it should be mentioned accurately and supported by papers. A vague statement can be taken as an excuse.
- Explain when you last used a substance, or say nothing. A detailed account can answer the question of effect, but it can also fix an admission before the lawyer has seen the lab result. The default should be to say little and ask for counsel.
- Ask for a further analysis, or accept the initial result. A request for another analysis, where available, costs time and money but can test the reliability of that result. The lawyer will advise on timing.
After the stop, the decisions concern what to collect, whom to tell and what to do with the licence. These are better made with counsel than alone.
Records that separate use from impairment
Because the defence rests on the gap between detection and effect, the documents that help are those that show when a substance was taken, why, and what the driver's condition was. Collect them with care and give them only to the lawyer.
- The test paperwork: everything handed over at the roadside, including the record of the test, the report of the officers and any notice of results. Photograph every page.
- Medical records and prescriptions: letters from doctors, pharmacy receipts and the leaflet of the medication, which show that a substance was prescribed and in what dose.
- The laboratory result, when it arrives, with the name of the substance and the method used.
- A timeline of the day: where the person was, what they did, when they drove, and who saw them. This should be written for the lawyer, not for the police.
- Evidence of driving behaviour: the route, the absence of incident and any witness who can confirm that nothing unusual happened.
- Vehicle papers: the rental agreement or registration, and the insurance certificate.
- Licence details: the number, country of issue and expiry, with a photograph of both sides.
Do not create new documents after the event, such as letters from a doctor written to explain a result. The lawyer will say what can properly be obtained.
Questions for the lawyer about detection and effect
The questions below go to the points on which these cases turn, and many people do not think to ask them.
- What exactly does the provision require the prosecution to prove after the recent reform of the Highway Code?
- Is the allegation based only on a positive result, or is there evidence of impaired driving?
- Which substance was detected, by what method, and what does the laboratory say about timing?
- Can a lawful prescription explain the result, and how should it be documented?
- Is a further analysis possible, and what does it cost and risk?
- What happens to my licence now, and is the decision recorded in my own country?
- How does this proceeding differ from drink driving, and what are the practical consequences?
- If I live abroad, must I come back to Italy for each hearing, or can the lawyer appear for me?
- What should I keep, and what should I stop doing?
A lawyer who can answer these clearly is describing how the law now works, not how it worked before the reform.
Separating detection from impairment depends on records held by others, and the table sets out what to obtain and what it answers.
| Record | Who holds it | What it answers |
|---|---|---|
| The record of the stop, with the times noted | The police force that carried out the check | The interval between driving and sampling |
| The screening device's documentation | The force operating it | Whether the screening step was properly carried out |
| The laboratory report and its underlying data | The facility that performed the analysis | Whether active substance and metabolites were distinguished |
| Accreditation of the facility | The facility and the accrediting body | Whether the analysis can constitute evidence |
| Hospital notes where blood was taken | The hospital | How consent was obtained and how the sample was handled |
| Prescriptions and clinical records | The prescribing doctor | Why a controlled substance was present at all |
Driving in Italy on a foreign licence
A positive test while driving in Italy on a foreign licence sets systems against each other. The Italian authorities act under their rules, but the licence belongs to another state, and the consequences can follow the driver home. The cross-border issues are practical rather than abstract.
Translations matter most. The record of the test, the lab result and any notice are in Italian, and a driver who cannot read them is at risk of misunderstanding. Official translations may be needed for the home authorities, for an insurer or for an employer. A driver should not rely on a friend or the rental desk to explain what a document says.
Records in the home country are the next issue. Medical records and prescriptions come from another health system, with different formats and sometimes a different language, and they may need translating and certifying before an Italian court will accept them. Start early, because doctors abroad take time to reply.
The remaining issues are logistical:
- A driver who must return home may be unable to attend a hearing in Italy, so the lawyer needs a clear authority to act.
- Calls between Italy and the driver's country should be arranged with the time difference in mind.
- The embassy or consulate cannot give legal advice but can confirm what is available locally.
- The rental company and the insurer should be told promptly, in writing, through counsel.
How the studio handles a drug-driving case
The studio takes instructions by phone or email, using the contacts on this site, and urgent matters are accepted at any hour. It works from Rome, Milan and Naples, but no visit is needed to start.
The person sends a short message with their name, the place and date of the stop, the document or notice received and a photograph of the licence. A written engagement is returned by scan or photograph. An initial call then covers what happened at the roadside, what was said and signed, what medication the person takes, and what the licence is needed for.
The studio's initial technical task is to understand the allegation: whether it rests only on a positive result or on additional evidence of impairment, and how the recent change to the provision affects what must be shown. It then advises on documents to collect and on contacts with the rental company, the insurer and the employer.
Where the driver lives abroad, the studio explains the process in English or Italian, arranges translations, and coordinates with the driver's own doctors and, where necessary, with a lawyer in the home country about the effect on the licence. It does not predict the outcome of a case. Updates go to the driver or to a nominated relative, and hearings are planned so that the driver can attend or be represented with the least disruption.
Roadside and aftermath: what not to do
The way a driver behaves in the hours after a positive test can help or harm. The points below concern conduct.
- Do not argue with the officers about the science. An argument at the roadside achieves nothing and can be recorded as uncooperative behaviour.
- Do not sign a record you cannot read. Ask for the text to be translated, and ask for your comments to be written on the page.
- Do not drive on. Continuing after a positive result, or after the licence has been withdrawn, creates a new problem on top of the original offence.
- Do not invent an explanation. A made-up story about a medicine or a meal is easily tested and does serious damage.
- Do not obtain a prescription after the event to explain a result. A document created for the purpose will be recognised as such.
- Do not discuss the details in messages to friends. Messages can be requested and read.
- Do not post about the stop. Social media entries are collected and can be quoted.
- Do not ignore the notices that follow. Letters from the authorities carry time limits, and silence is read as indifference.
Keep every paper, in the form in which it arrived, and send photographs to the lawyer the same day.
Words you will see on the papers
The terms below appear on this page and on notices a driver may receive. A plain reading helps with calls and with checking that a document says what you were told.
- Drug driving: driving after taking drugs; a separate offence from drink driving, with its own testing.
- Drink driving: driving with alcohol above a measured level, where a breath reading places the driver in a band.
- Band: the range into which an alcohol reading falls, which determines the offence; drugs have no equivalent.
- Positive result: a finding that a substance is present in the sample; it does not by itself show that the driver was affected.
- Detection and effect: the gap between a substance being found in the body and its having any influence on driving.
- Prescribed medication: a substance taken on medical advice, which can produce a positive result and needs to be documented.
- Highway Code: the statute that contains the provision, reformed so that what the prosecution must prove is different from before.
- Testing: the roadside and laboratory procedures by which a sample is taken and analysed.
If a notice uses a word that is not on this list, photograph it and send it to the lawyer before replying.
About the lawyer
Most people reach this office in the middle of something they did not plan for: an arrest in another country, a search at dawn, a summons that arrived while they were away from Italy. The first conversation is with Avv. Massimo Romano himself, not with a secretary who takes a message. He is a criminal defence lawyer admitted to plead before the Italian Court of Cassation, and his work has long centred on Italian criminal procedure, European arrest warrants and extradition. On that first call he asks what documents exist, who has seen the person detained, and which authority is involved. No assessment is given before the papers have been read. Afterwards he sets out, in writing, what can be done from Italy and what has to be done where the person is held. Relatives who do not speak Italian are not left translating for themselves: the office speaks with the family in English, by telephone and in writing.
Call the office, or write on WhatsApp if that is easier from abroad. Have to hand the full name of the person involved, the city and country where they are held, and any document already received, even as a photograph.
Avv. Massimo Romano — criminal defence lawyer, admitted to the Italian Court of Cassation
Iscritto all'Ordine degli Avvocati di Napoli n. 14553 | Patrocinante in Cassazione dal 23/10/2015
Roma, Via Avicenna 97, 00146 · Milano, Via Giuseppe Pecchio 3, 20129 · Napoli, Corso Umberto I 237, 80138
+39 335 669 3954 · WhatsApp