Asked by a driver in Bengaluru

Can I refuse a breathalyser test?

Answered by Advocate Sharan Jain··Criminal Defense & Prosecution

Legal Shorts · 77 words

Refusing is not a reliable way to avoid a drink-driving case. Under Section 203, a lawful request for a breath sample follows specified suspicion or accident conditions, and refusal can permit arrest where the statutory conditions are met. Section 205 also allows refusal without reasonable cause to support the prosecution evidence. If you have a medical difficulty, say so immediately and ask that it be recorded. Preserve the test, timing and medical records for any later challenge.

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This is the single most useful thing to know at a check point, and the intuition most people bring to it is exactly wrong. Refusing a breath test does not create a gap in the prosecution evidence. It creates three problems, each of them expressly provided for in the Act.

What the officer may require

Section 203(1) of the Motor Vehicles Act, 1988 allows a police officer in uniform, or an officer of the Motor Vehicles Department authorised in that behalf, to require any person driving or attempting to drive a motor vehicle in a public place to provide one or more specimens of breath for a breath test there or nearby, if the officer has reasonable cause to suspect an offence under Section 185, and the requirement must be made as soon as reasonably practicable after the commission of the offence. Sub-section (2) deals with accidents: where a vehicle is involved in an accident in a public place and a uniformed officer has reasonable cause to suspect that the driver had alcohol in his blood or was under the influence of a drug, he may require a breath specimen, at the hospital if the person is an indoor patient and otherwise at or near the place or at a police station. There is a protective proviso for the indoor patient: no specimen may be required unless the registered medical practitioner in immediate charge has first been notified of the proposal and does not object on the ground that it would be prejudicial to the patient's proper care or treatment.

The three consequences of refusing

  1. Arrest. Section 203(4) allows an officer to arrest without warrant a person who refuses, omits or fails to provide a breath specimen where the officer has reasonable cause to suspect alcohol in his blood. Sub-section (3) separately allows arrest without warrant where the device indicates the presence of alcohol, except while the person is a hospital indoor patient.
  2. A blood test anyway. Section 204(1) allows a person arrested under Section 203 to be required, while at a police station, to provide a specimen of blood to a registered medical practitioner produced by the officer, either because the device indicated alcohol or because the person refused the breath test. Section 204(3) makes the laboratory result admissible in evidence, and the Explanation confines a laboratory test to analysis at a laboratory established, maintained or recognised by the Central or a State Government.
  3. A presumption against you. Section 205 provides that in a proceeding for an offence under Section 185, if it is proved that the accused, when requested by a police officer, refused, omitted or failed to consent to providing a specimen of breath or blood, that refusal may, unless reasonable cause is shown, be presumed to be a circumstance supporting the prosecution evidence or rebutting the defence evidence about his condition at the time.
The safeguard for a female person
Where the person required to provide a blood specimen is female and the registered medical practitioner produced by the police officer is male, the proviso to Section 204(1) requires that the specimen be taken only in the presence of a female, whether a medical practitioner or not. That is a condition of the taking, and it is worth stating at the time rather than complaining about afterwards.

What is legitimate to insist on

  • That the officer is in uniform, or is an authorised officer of the Motor Vehicles Department. The section names who may require the test.
  • That the reading is shown to you and noted, along with the make of the device and whether more than one specimen was taken. The section speaks of one or more specimens.
  • Your own record of the timings. The time of the requirement, the time of any arrest and the time you were produced before a doctor. Where an arrest is made in connection with a Section 185 offence, the proviso to Section 202(1) requires the medical examination under Sections 203 and 204 within two hours of arrest, failing which the person shall be released from custody.
  • The condition of the device. Calibration and maintenance records are legitimately obtainable at the trial, and so is the question whether the laboratory used meets the description in the Explanation to Section 204.

Those are the points a defence is actually built on. They are recorded at the roadside and argued later. Our guide on drunk driving penalties and licence suspension takes the procedure from the check point through to the judgment and the licence proceedings.

Two related situations

The first is medication. The drug limb of Section 185 has no numerical threshold and is written as a capacity test, requiring that the person be under the influence of a drug to such an extent as to be incapable of exercising proper control over the vehicle, and the Explanation defines a drug as any intoxicant other than alcohol, natural or synthetic, or any material notified by the Central Government, including narcotic drugs and psychotropic substances. Prescription medication that produces intoxication is not automatically outside the section.

The second is the vehicle. Where a person is arrested under Section 202, sub-section (3) permits the arresting officer to take proper steps for the temporary disposal of the vehicle. Getting it back is a separate exercise from the prosecution, with its own forum and its own material, and the routes are in our note on getting a seized vehicle released in Karnataka.

The short practical rule is this. Refusal buys nothing. Cooperation with the test, combined with a careful contemporaneous record of who did what and when, is the position from which a Section 185 case is actually defended.

Sources

The law this answer relies on, so you can read it yourself.

  1. 1.Motor Vehicles Act, 1988, amended statutory text Read the source
  2. 2.Section 203, Motor Vehicles Act, 1988. Breath tests, the reasonable cause requirement, the hospital indoor patient safeguard, and the powers of arrest without warrant on a positive reading or on refusal. Read the source
  3. 3.Section 204, Motor Vehicles Act, 1988. Laboratory test, with the blood specimen requirement at a police station, the safeguard where the person is female and the medical practitioner is male, and the admissibility of the result. Read the source
  4. 4.Section 205, Motor Vehicles Act, 1988. Presumption of unfitness to drive, allowing a refusal to provide a breath or blood specimen to be presumed, unless reasonable cause is shown, as a circumstance supporting the prosecution evidence. Read the source
  5. 5.Section 202, Motor Vehicles Act, 1988. Power to arrest without warrant for offences under Sections 184, 185 and 197, with the proviso requiring medical examination within two hours of arrest in a Section 185 case, failing which the person shall be released. Read the source
  6. 6.Section 185, Motor Vehicles Act, 1988. Driving by a drunken person or a person under the influence of drugs, with the 30 mg per 100 ml threshold, a fine of ten thousand rupees for a first offence and fifteen thousand rupees for a second or subsequent offence. Read the source

The short answer's sources were checked on 12 September 2026. Statutes and judgments can change, so check the current position before you act on anything here.

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Go deeper on this

This answer is the short version. These guides cover the same ground in full, with the procedure, the timelines and the leading cases.

SJ

Answered by

Advocate Sharan Jain

Advocate based in Bangalore, practising before the Karnataka High Court and District, Sessions, Consumer and Family courts. Answers public legal questions to make Indian law more accessible.

This answer is general information on Indian law as at August 25, 2026, published for public education. It is not legal advice, it does not take account of your facts, and reading it does not create an advocate-client relationship. Law changes and every case turns on its own circumstances. Please consult a qualified advocate about your own matter.

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