Failure to Provide Blood Sample: Legal Insight

In Canada, the offence of failure to provide blood sample in a drug-impaired driving investigation is a serious crime under the Criminal Code. Classified as a hybrid offence and recorded under UCR Code 9255, this charge arises when a driver, knowing that a lawful demand has been made, refuses or fails to provide a blood sample without a reasonable excuse. Under section 320.15(1) of the Criminal Code, this conduct can lead to mandatory minimum penalties, a potential maximum of 10 years in prison, and driving prohibitions, even if the Crown cannot prove actual impairment. The law is designed to prevent drivers from undermining drug-impaired driving investigations and to protect public safety on Canadian roads.

The Legal Definition

Everyone commits an offence who, knowing that a demand has been made, fails or refuses to comply, without reasonable excuse, with a demand made under section 320.27 or 320.28.

In plain English, this means a person commits the offence of failure to provide blood sample if four key elements are present: (1) a peace officer makes a lawful demand under sections 320.27 or 320.28; (2) the person knows that this demand has been made; (3) the person fails or refuses to comply with it; and (4) there is no reasonable excuse for that failure or refusal. For drug-impaired driving investigations, the relevant demands generally arise under section 320.28, once the officer has reasonable grounds to believe a driver is impaired by a drug or by a combination of alcohol and a drug.

Sections 320.27 and 320.28 set out when and how officers can make demands. Section 320.27 primarily deals with roadside screening (usually for alcohol), while section 320.28 authorizes more intrusive testing, including demands for blood samples, once reasonable grounds of drug impairment are formed. A qualified medical practitioner or technician must take the blood sample, and only if doing so will not endanger the person’s health. Refusing that lawful demand—without a solid, legally recognized excuse—completes the offence, whether or not the person was actually impaired.

Penalties & Sentencing Framework

• Offence classification: Hybrid (Crown may proceed by indictment or summary conviction).
• Maximum penalty (indictable): Up to 10 years imprisonment for a basic section 320.15(1) offence.
• Maximum penalty (summary): Up to 2 years less a day imprisonment and/or a fine of up to $5,000.
• Mandatory minimum – First offence: $1,000 fine.
• Mandatory minimum – Second offence: 30 days imprisonment.
• Mandatory minimum – Each subsequent offence: 120 days imprisonment.
• Mandatory driving prohibition: Court must impose a driving prohibition on conviction under section 320.15(1).

Because this is a hybrid offence, the Crown chooses whether to proceed by indictment or by summary conviction. That decision affects the maximum punishment, but not the mandatory minimums. Whether the Crown elects summarily or by indictment, a first conviction for failure to provide blood sample will result in at least a $1,000 fine; a second conviction brings at least 30 days in jail; and each further conviction brings at least 120 days in jail. Courts cannot go below these minimums.

Proceedings by indictment expose the accused to up to 10 years in prison for the basic offence and are usually reserved for more serious circumstances: repeat offenders, significant risk to the public, or cases linked to collisions causing harm. Even on indictment, most sentences will fall well below the maximum, but the high ceiling signals how seriously Parliament views the refusal to cooperate with impaired driving investigations.

Proceedings by summary conviction are more common for first-time or less aggravated cases. The maximums are lower—up to a $5,000 fine and/or two years less a day in jail—but the same mandatory minimums still apply. That means there is no “light” version of this offence: a first-time offender still faces at least a $1,000 fine and a driving prohibition, and repeat offenders face jail, even where the Crown proceeds summarily.

In addition to fines and custody, courts must impose a driving prohibition under section 320.24 when sentencing for section 320.15(1). The length will vary depending on prior record and aggravating factors (such as very dangerous driving or a collision), but for most first offenders the prohibition will be at least one year. These prohibitions are in addition to provincial administrative licence suspensions that often occur at the roadside or upon charge.

Common Defenses

• Reasonable excuse (e.g., medical inability to provide blood)
  A central feature of section 320.15(1) is the phrase “without reasonable excuse.” If the accused can raise evidence of a reasonable excuse, and the Crown cannot disprove it beyond a reasonable doubt, an acquittal may follow. In the context of failure to provide blood sample, this often involves genuine medical conditions or emergencies that make blood collection unsafe or impossible. For example, if a qualified medical practitioner concludes that venipuncture would seriously endanger the person’s health (due to a bleeding disorder, unstable cardiac condition, or other acute risk) and refuses to take the sample for that reason, the driver’s non-compliance may be reasonably excused. Similarly, if the accused was unconscious or cognitively unable to understand or comply at the crucial time, this can form the basis of a reasonable excuse. However, courts are generally skeptical of excuses such as needle phobia, discomfort, or general dislike of medical procedures; these are rarely seen as “reasonable” in law, especially where medical staff indicate the procedure is safe.
• Procedural errors in the demand process
  The Crown must prove that a lawful demand was made under section 320.27 or 320.28. This involves showing that a properly authorized peace officer had the necessary grounds, used the correct legal authority, and complied with timing and communication requirements. To demand blood under section 320.28 in a drug-impaired driving context, the officer needs reasonable grounds to believe the person operated a conveyance while impaired by a drug or a combination of alcohol and a drug, or committed a related impaired-driving offence. The demand must be made “as soon as practicable,” and the person must be required to accompany the officer for the purpose of obtaining the sample. If the officer misstates the demand, fails to specify what is required, delays unreasonably, or lacks the necessary reasonable grounds, the demand may be found unlawful. In that case, refusing it does not amount to a Criminal Code offence, and the charge of failure to provide blood sample can be dismissed because an essential element—the lawful demand—is missing.
• Challenges to the lawfulness of the initial stop or detention
  The legality of the entire interaction between police and driver can be scrutinized under the Canadian Charter of Rights and Freedoms. Although section 320.27 allows random roadside breath screening, the officer must still be lawfully exercising powers—such as enforcing traffic laws or operating a valid check stop. If the initial stop or subsequent detention is arbitrary, unreasonably prolonged, or conducted in a way that violates Charter rights (such as the right to counsel or the right against unreasonable search or seizure), defence counsel may seek exclusion of evidence or dismissal of the charge. In some cases, if the detention leading to the blood demand is found unlawful, the court may conclude that the demand itself was not properly grounded in law, undermining the failure to provide blood sample charge. However, courts are cautious about using Charter remedies to invalidate impaired-driving enforcement unless the breach is serious and impacts trial fairness or the administration of justice.

Real-World Example

Imagine Jane is stopped by the police late at night after her driving appears erratic—she is weaving within her lane and nearly rear-ends another vehicle. The officer observes signs that suggest possible drug impairment: red, glassy eyes, delayed responses, and the smell of recently burned cannabis in the vehicle. After roadside investigation and a drug recognition evaluation, the officer forms reasonable grounds to believe that Jane is impaired by a drug and lawfully demands, under section 320.28, that she accompany police to a hospital so a qualified medical practitioner can draw blood. The demand is explained clearly, and Jane is told that refusing could result in criminal charges. Jane, who simply does not want needles and is afraid of the result, refuses to provide a blood sample without giving any medical or other objective reason. The medical staff indicate there is no health risk to taking her blood. In these circumstances, Jane has likely committed the offence of failure to provide blood sample under section 320.15(1). Even if the Crown ultimately cannot prove that Jane was actually impaired at the time of driving, her refusal—without reasonable excuse—to comply with a lawful demand is a separate crime. She faces the mandatory minimum fine, a driving prohibition, and the possibility of additional penalties, particularly if she has prior impaired or refusal-related convictions.

Record Suspensions (Pardons)

A conviction for failure to provide blood sample creates a permanent criminal record unless and until a record suspension (pardon) is granted. Because this is a hybrid offence, the waiting period for a record suspension depends on how the Crown proceeded and how the conviction is formally classified:

If the conviction is treated as a summary offence, an individual becomes eligible to apply for a record suspension five years after completing all aspects of the sentence (including fines, probation, driving prohibition, and any jail term). If the conviction is treated as an indictable offence, the waiting period is longer: the person must wait ten years after sentence completion before applying. During this waiting period, the conviction can significantly affect employment, volunteering, immigration, and travel, particularly to countries such as the United States. A record suspension, once granted by the Parole Board of Canada, does not erase the conviction, but it separates it from other criminal records and generally removes it from standard criminal record checks, easing many of these collateral consequences.

Related Violations

• Impaired Driving
• Refusal to Provide Breath Sample
• Driving over 80