Understanding DUI Charges in South Africa

Driving under the influence of alcohol or drugs is one of the most commonly prosecuted criminal offences in South Africa. It is governed by the National Road Traffic Act, and it is treated seriously because impaired driving places every other road user at risk. A conviction produces a criminal record, not a traffic fine you can quietly pay.

If you have been arrested for, or charged with, driving under the influence, it helps to understand how the offence works, what the legal limits are, how the arrest and court process unfolds, and what penalties a court can impose. This article sets out those points in plain language.

This is general information about South African law, not legal advice. For guidance on your specific matter, consult a criminal law attorney.

The Offence: Driving Under the Influence in South Africa

The controlling provision is section 65 of the National Road Traffic Act 93 of 1996. Section 65 makes it an offence to drive, or to occupy the driver’s seat of, a motor vehicle on a public road while the concentration of alcohol in your blood or breath exceeds the prescribed legal limit. The same section also prohibits driving while under the influence of intoxicating liquor or a drug having a narcotic effect.

There are effectively two limbs to the offence. The first is the “per se” or over-the-limit limb, which focuses on the measurable concentration of alcohol in your blood or breath, regardless of how sober you appear. The second is the impairment limb, which focuses on whether your ability to drive was affected by alcohol or drugs. A prosecutor may rely on either, and the evidence in a particular docket often supports both.

It is also an offence, in terms of the Criminal Procedure Act 51 of 1977, to refuse to submit to a blood or breath test when lawfully required to do so by a traffic officer. That refusal can itself be prosecuted.

The Legal Blood and Breath Alcohol Limits

The prescribed limits are set out in the regulations to the National Road Traffic Act. For an ordinary driver, the limit is a blood alcohol concentration of more than 0,05 grams per 100 millilitres of blood, or more than 0,24 milligrams of alcohol per 1 000 millilitres of breath. These two figures describe the same threshold measured in two different ways.

For a professional driver, meaning someone who drives for reward such as the holder of a public driving permit, the limit is far lower: no more than 0,02 grams per 100 millilitres of blood, or 0,10 milligrams per 1 000 millilitres of breath. In practical terms, even one drink can place a professional driver over the limit.

There is no reliable rule of thumb for converting drinks into a blood alcohol reading, because the result depends on body mass, metabolism, food intake, and the strength of the drink. The only safe assumption is that any alcohol at all may push you over the prescribed limit.

The Arrest and Charge Process

A DUI investigation usually begins at a roadblock or after a traffic officer observes driving that suggests impairment. The officer may ask you to blow into an approved breathalyser. If the reading is over the limit, or if the officer forms the view that you are impaired, you may be arrested under the authority of section 40 of the Criminal Procedure Act 51 of 1977, which permits arrest without a warrant for certain road traffic offences.

After arrest, the process typically follows these steps:

• You are taken to a police station or testing centre for a breath test on an approved evidential breath-testing instrument, or for a blood sample to be drawn by a registered medical practitioner or registered nurse.
• The blood sample must be drawn within two hours of the alleged offence, and the chain of custody for that sample must be preserved up to the forensic laboratory.
• You are informed of your rights, including the right to be examined by a medical practitioner of your own choice.
• You are detained, and bail is determined, either by the police on a prescribed schedule for less serious matters or by the court at a formal bail hearing under section 60 of the Criminal Procedure Act.
• A charge sheet (J175 for traffic matters, or a formal indictment) is drawn up, and a court date is allocated.

Once charged, the matter moves into the criminal court process. The docket, the breath test printout or blood-alcohol analysis report, and the arresting officer’s statement become the core of the State’s evidence.

The Court Procedure for DUI Matters

A DUI charge is prosecuted in the magistrates‘ court. Depending on how the charge is framed and how serious the facts are, it may be enrolled in the district magistrate’s court or the regional court. The matter is prosecuted by the National Prosecuting Authority (NPA).

At the first appearance, the charge is put to you, and you are asked to consider your plea options. The main procedural routes are:

• Plead guilty with a written plea explanation in mitigation under section 112 of the Criminal Procedure Act 51 of 1977. This avoids a full trial and places mitigating facts before the magistrate.
• Plead not guilty and proceed to trial. The State must then prove the case beyond reasonable doubt, and the admissibility of the blood or breath evidence is tested.
• A plea-and-sentence agreement under section 105A of the Criminal Procedure Act, in limited matters where the NPA agrees to a negotiated outcome.

At trial the defence typically scrutinises whether the testing equipment was properly calibrated, whether the operator was authorised, whether the chain of custody for the blood sample was preserved, and whether the arrest itself was lawful. If any of these steps was flawed, the court may exclude the evidence or return a not-guilty verdict.

You can read more about South African criminal procedure on the Department of Justice and Constitutional Development website, or browse South African case law on the Southern African Legal Information Institute (SAFLII) database. These are independent public resources and are not affiliated with any law firm.

Penalties for a DUI Conviction

Section 65 of the National Road Traffic Act sets out the penalties a court may impose. For a first conviction, a court may sentence you to a fine, or to imprisonment for a period not exceeding six years, or to both. For a second or subsequent conviction the penalties increase, and a court is required to consider cancelling your driver’s licence.

In addition to the fine or imprisonment, a DUI conviction almost always results in a driver’s licence suspension. The court may also consider:

• The level of your blood or breath alcohol reading.
• Whether anyone was injured or killed, or property was damaged.
• Whether you have previous convictions, particularly for the same offence.
• Whether you showed genuine remorse and took steps such as attending a substance-abuse programme.
• Your personal circumstances, including employment and dependants.

A conviction also leaves you with a criminal record, which can affect employment, travel, and professional registration. The conviction is not automatically expunged; the expungement of criminal records in South Africa is governed by the Criminal Procedure Act and depends on the sentence imposed and the passage of time.

The Criminal Law department at Otrebski Attorneys, a 100% women-led Sandton firm led by Director Nastasja Otrebski, assesses each DUI matter on its own facts before recommending a plea strategy. The firm holds a Level 4 B-BBEE rating and carries a 5-star Google rating across 12 reviews.

Frequently Asked Questions About DUI Charges

What is the legal blood alcohol limit in South Africa?

For an ordinary driver the limit is more than 0,05 grams of alcohol per 100 millilitres of blood, or more than 0,24 milligrams per 1 000 millilitres of breath. For a professional driver the limit is lower, at 0,02 grams per 100 millilitres of blood or 0,10 milligrams per 1 000 millilitres of breath.

Which law governs DUI charges in South Africa?

The controlling provision is section 65 of the National Road Traffic Act 93 of 1996. It makes it an offence to drive, or to sit in the driver’s seat of, a motor vehicle on a public road while the concentration of alcohol in your blood or breath exceeds the prescribed legal limit, or while under the influence of intoxicating liquor or a drug having a narcotic effect.

Will a DUI conviction give me a criminal record?

Yes. A conviction under section 65 of the National Road Traffic Act is a criminal conviction, not a traffic fine. It appears on your criminal record and can affect employment, travel, and professional registration.

How long after arrest can the police draw blood?

The blood sample should be drawn within two hours of the alleged offence, by a registered medical practitioner or registered nurse, and the chain of custody must be preserved up to the forensic laboratory.

Get help with a criminal law matter.

Disclaimer. This article is general information about South African road traffic and criminal law and is not legal advice. It does not create an attorney-client relationship. For guidance on your specific matter, consult a qualified criminal law attorney. Otrebski Attorneys is a 100% women-led, Level 4 B-BBEE law firm based in Sandton, Johannesburg, with a 5-star Google rating across 12 reviews.