Drug-driving in Northern Ireland: latest figures, roadside tests and penalties

Updated 21 September 2026. Drug-driving enforcement in Northern Ireland has changed substantially since PSNI began piloting roadside DrugWipes in August 2024. By December 2025, police said officers had carried out approximately 150 tests, with 79 positive for cannabis and/or cocaine.

That is a positivity rate of roughly half among the people selected for testing. It is not evidence that half of Northern Ireland drivers use drugs: these were targeted police tests conducted where circumstances justified testing, not a random survey of motorists.

What are DrugWipes and what do they detect?

Nidirect states that where police suspect drug impairment they can require a Field Impairment Test at the roadside and may use a device capable of detecting cannabis and cocaine in saliva.

If officers believe a person is unfit to drive through drugs, the driver can be arrested and required to provide a blood specimen at a police station. The roadside wipe is therefore a screening tool, not the final evidential result.

Latest Northern Ireland DrugWipe figures

PSNI said in December 2025 that approximately 150 DrugWipe tests had been conducted since the pilot began in August 2024 and 79 had been positive for cannabis and/or cocaine.

A separate PSNI Freedom of Information response, published on 4 December 2025, recorded 98 DrugWipe tests during 2025 up to 1 December. PSNI cautioned that those figures were approximate because they relied on officers submitting returns.

The figures are not contradictory: one covers the pilot cumulatively from August 2024, while the FOI count is specifically for 2025 and uses officer-return data. They also come from different extracts.

What happened during the 2025/26 Christmas campaign?

A PSNI FOI response covering 1 December 2025 to 1 January 2026 recorded 41 arrests related specifically to drug driving across policing districts. Antrim & Newtownabbey recorded 12 and Belfast 11.

The same FOI response recorded six DrugWipe tests during that period, but PSNI again stressed that wipe numbers depended on officer returns. The six-wipe figure should therefore not be interpreted as a complete count of every drug-driving investigation.

Separately, PSNI's Christmas campaign bulletin reported 288 arrests for combined drink/drug-driving offences. That larger figure is not drug-driving-only and should not be compared directly with the 41 drug-driving arrests from the FOI extract as though both measured the same thing.

How many drug-driving offences are there in a full year?

This is where the official data has an important limitation. PSNI's main annual motoring-offence publication combines drink and drug driving in one category. In 2025 it recorded 2,872 arrests and 2,794 prosecution referrals for drink/drug-driving offences combined.

That publication cannot be used to claim there were 2,872 drug-driving arrests. The annual drug-only total is not separated in that headline series.

For search users, this distinction matters because many online summaries accidentally turn a combined alcohol-and-drugs number into a drugs-only statistic.

Does Northern Ireland have fixed legal limits for individual drugs?

Nidirect's Northern Ireland road-safety guidance states that it is an offence to drive if you are impaired through drugs and notes that there are no set limits for individual drugs. That differs from systems that use prescribed per-drug concentration limits as the central offence.

Police can use a field impairment assessment, a saliva screening device and, where appropriate, evidential blood testing. The legal issue is whether the driver is unfit through drugs and the evidence established in the case.

What are the penalties for drug-driving in Northern Ireland?

Nidirect states that a person convicted of drug driving may receive:

• a minimum one-year driving ban;
• a fine of up to £5,000;
• possible imprisonment;
• a criminal record; and
• a drug-driving conviction shown on the driving licence for 11 years.

The penalty depends on the facts and circumstances considered by the District Judge.

Nidirect also says there is no equivalent drug-driving rehabilitation course to the drink-drive offender course.

Prescription and over-the-counter medicines can matter too

Drug-driving is not only a question of illegal substances. Nidirect advises motorists to take prescribed and over-the-counter medicines according to medical or pharmacy instructions and to read warnings about driving or operating machinery.

If a medicine may impair driving, the correct response is to seek advice from a doctor, pharmacist or healthcare professional rather than assuming that a legally supplied medicine automatically makes driving safe.

Why the 50% DrugWipe positivity figure needs context

The roadside pilot did not test a random cross-section of NI motorists. Police deploy the devices in circumstances where testing is considered appropriate. A high positive rate among a targeted group therefore tells us that the screening tool is identifying suspected cases; it does not estimate drug use across the general driving population.

It also only screens for cannabis and cocaine. Other substances can still be relevant to impairment and may require different evidential processes.

Frequently asked questions

Can PSNI test for drugs at the roadside?

Yes. Police can use a Field Impairment Test and may use DrugWipes that detect cannabis and cocaine in saliva.

How many DrugWipe tests were positive in the pilot?

By late 2025 PSNI said 79 of approximately 150 tests since the August 2024 pilot launch were positive for cannabis and/or cocaine.

Is a positive DrugWipe a conviction?

No. It is a roadside screening result. Further evidential steps can include arrest and blood testing.

What is the minimum driving ban?

Nidirect says a drug-driving conviction may result in a minimum one-year ban.

Are there fixed legal limits for individual drugs in Northern Ireland?

Nidirect's NI guidance says there are no set limits for individual drugs; the offence is framed around driving while impaired or unfit through drugs.

Sources and methodology

This article uses PSNI operational releases and FOI disclosures alongside nidirect legal guidance and Department for Infrastructure information on the DrugWipe pilot. DrugWipe counts, arrests and combined drink/drug statistics are kept separate because they measure different stages and populations.