Toronto Drug DUI Lawyers
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Every drug-impaired driving file in this city is really one of two cases. Either the Crown has a number, a blood drug concentration measured in a lab, or it has an opinion, built from observations, roadside tests and an evaluation at the station. Which one you are facing decides the whole defence. Kazandji Law defends drug DUI charges across Toronto from our head office at 180 John Street, a short walk from the courthouse where these cases are heard.
By Fadi Matthew Kazandji, Founding Partner, Kazandji Law. Serving Toronto. Updated July 2026.
Charged after a stop, a collision or a hospital blood draw? Find out which case you are actually facing.
Call 647-588-3234Free consultation. Head office at 180 John Street, near the 10 Armoury Street courthouse.
Case one: the numbers file
A numbers file is built on the per-se offences in section 320.14 of the Criminal Code: a blood drug concentration at or over a prescribed limit within two hours of driving under s. 320.14(1)(c), the alcohol-and-drug combination under s. 320.14(1)(d), and the low THC summary offence under s. 320.14(4). No bad driving has to be proven. The concentration is the crime.
For a number to convict, three things have to exist and survive scrutiny. First, a lawful pathway to your blood: a valid post-evaluation demand, a direct blood demand where other testing was impracticable, or a properly authorized hospital sample after a collision. Second, the two-hour window: the concentration has to be tied to the statutory timeframe, which turns the timeline into an element of the offence rather than a background detail. Third, the analysis itself, done properly and documented properly, at or over the level the regulation prescribes.
In Toronto these files mostly arrive through three doorways: collisions where blood gets drawn at a hospital, station evaluations that end in a sample demand, and investigations where breath explained nothing so blood became the Crown's route. Each doorway generates its own paperwork, and each piece of paperwork is a place the case can fail.
The numbers themselves
All of the numbers live in one federal regulation, the Blood Drug Concentration Regulations. Here is the entire table Canadian drug DUI law runs on.
| Drug | Level | Offence it feeds |
| THC | 2 nanograms per millilitre of blood | The low summary offence, fine capped at $1,000 |
| THC | 5 nanograms per millilitre | The full hybrid offence |
| THC and alcohol together | 2.5 nanograms of THC with 50 milligrams of alcohol per 100 millilitres | The combination offence |
| Cocaine, methamphetamine, ketamine, PCP, LSD, psilocybin, psilocin, 6-monoacetylmorphine | Any detectable level | The full hybrid offence on detection alone |
| GHB | 5 milligrams per litre | The full hybrid offence, set above zero because the body produces trace amounts naturally |
Two observations lawyers make and clients rarely hear. The any-detectable list means a Toronto driver can face the full offence with no evidence of impairment at all for drugs like cocaine or ketamine. Detection is the entire case, so the pathway to the sample becomes the entire defence. And the low THC offence between 2 and 5 nanograms is summary only with a maximum $1,000 fine and no minimum, which changes the negotiating geometry on marginal readings more than most people expect.
Case two: the opinion file
An opinion file is built on s. 320.14(1)(a): operating while your ability to operate is impaired to any degree by a drug, or by alcohol and a drug combined. Here the Crown needs no number over a limit. It has to persuade a court that your ability to drive was actually impaired, to some degree, and it builds that conclusion out of pieces.
The pieces are familiar. A driving pattern somebody reported. The officer's roadside observations. Performance on standard field sobriety tests. The station assessment by an evaluating officer, the role most people know by the program name Drug Recognition Expert. Statements you made. Whatever the car, the video and the booking room add.
Every one of those pieces is contestable in a way a lab concentration is not. Observations are interpretations. Fatigue at 2 a.m. looks like impairment. Anxiety during a police encounter looks like impairment. A medical condition, a language barrier or an old knee injury can sink a roadside test that was marginal to begin with. And the assessment at the end of the chain is an opinion formed by the same institution that laid the charge. Even the federal government's own published materials acknowledge that the science connecting drug levels, cannabis especially, to actual impairment is not settled, and we put those materials to work at trial.
The drugs with no number
No published limit exists for prescription opioids, benzodiazepines or most medications. Those Toronto files are always opinion files, and a lawful prescription is not a defence to impairment.
The regulation's table is short on purpose. Fentanyl, oxycodone, hydromorphone, benzodiazepines, sleep medication, most psychiatric medication: none of them carry a per-se number, so the Crown cannot prosecute those files on a concentration. It has to run the opinion case, with every vulnerability that comes with it.
That is cold comfort if you are the one charged for driving on medication you take exactly as prescribed. The impairment offence does not care that the drug was lawful. It asks only whether your ability was impaired to any degree. But the defence posture is genuinely better: no number anchors the case, everything rests on observations and the evaluation, and both can be taken apart. If the charge is about the medication itself, how it was prescribed or obtained, that is a different prosecution covered on our Toronto prescription drug crimes page.
Which case am I in? A one-look comparison
Most clients can place their own file within minutes of reading their release papers. This is the short version of everything above.
| The numbers file | The opinion file |
| What convicts | A blood drug concentration at or over a prescribed limit, inside the two-hour window | A finding that your ability to drive was impaired to any degree by a drug |
| Where it comes from | Hospital draws after collisions, post-evaluation sample demands | Observations, roadside tests, the evaluating officer's assessment, statements |
| Main battleground | The pathway: stop, suspicion, demands, timing, continuity, the lab file | The substance: what the observations really show and what else explains them |
| Typical weak point | Paperwork and the two-hour arithmetic | Alternative explanations and the unsettled science |
From a Dundas Street stop to a demand
Compress the police pipeline into one section and it looks like this. A TPS officer stops you, at a RIDE line, after a driving complaint, or at a collision scene. At the roadside, an officer who reasonably suspects you have a drug in your body and drove within the preceding three hours can demand standard field sobriety tests or a sample for approved drug screening equipment, the oral fluid screeners, under s. 320.27(1).
One precision every Toronto driver should hold onto: the no-suspicion screening power that exists for alcohol, mandatory alcohol screening under s. 320.27(2), has no drug equivalent. Nobody can lawfully demand an oral fluid sample on zero grounds. If the suspicion behind a drug demand was thin, or formed after the demand rather than before it, everything downstream is on the table.
From there, an officer with reasonable grounds to believe a drug-impaired driving offence was committed can demand an evaluation conducted by an evaluating officer under s. 320.28(2), and after the evaluation, oral fluid, urine or blood under s. 320.28(4). Blood can be demanded directly where other testing is impracticable, which is the hospital scenario after a crash. And refusing any lawful demand along that chain is its own criminal charge with a $2,000 minimum fine, the subject of our Toronto breath sample refusal page. Each link in the chain has statutory conditions. Each condition is a place the defence looks.
What Ontario does before court
The province moves first and asks questions never. Perform poorly in a Drug Recognition Expert evaluation or refuse testing and Ontario suspends your licence for 90 days on the spot, impounds the vehicle for 7 days whether or not it is yours, and issues a $550 penalty plus a reinstatement fee, under rules the province updated effective January 1, 2026. Fail a roadside sobriety test and the ladder runs 7, then 14, then 30 days, with penalties of $250, $350 and $450 and program requirements as occurrences accumulate.
Zero tolerance layers sit underneath. Drivers 21 and under, and G1, G2, M1 and M2 holders, cannot drive with any drug a screening device can detect. Commercial and CVOR drivers sit under the same zero tolerance rule with a 3 day roadside suspension per occurrence plus the monetary ladder. In a city where rideshare, delivery and trucking pay the rent, that 3 day tier and the 90 day suspension often hurt more than any fine ever will, because for a professional driver the licence is the job.
Medical cannabis authorization exempts a driver from the zero tolerance program only. It gives no protection against the criminal blood-drug limits or an impairment prosecution. Two layers, two rulebooks. Mixing them up is a common and expensive mistake.
Young and new drivers: zero tolerance in full
For a large slice of Toronto, the rules are stricter than anything above. Drivers 21 and under, and anyone holding a G1, G2, M1 or M2, cannot drive with any drug in their system that a federally approved screening device can detect. No limit, no allowance, no argument about impairment.
The zero tolerance consequences run on their own ladder: roadside suspensions of 7, 14 and 30 days for the first, second and third occurrence, monetary penalties of $250, $350 and $450, fines of $60 to $1,000 on conviction, and for novice licence holders the possibility of cancellation on top. None of that requires a criminal charge, and a criminal charge stacks the adult consequences on top of the zero tolerance ones.
Two things follow for students and new drivers. A legal purchase at a licensed store the night before can still end a G2 at a RIDE line the next day, because detection is the trigger, not impairment. And authorized medical cannabis users are exempt from this zero tolerance program specifically, while remaining fully exposed to the impairment offence and the criminal limits like everyone else.
If the Crown proves it
A first conviction carries a minimum $1,000 fine. A second brings a minimum of 30 days in jail, a third 120 days. The hybrid ceiling is 10 years by indictment. The low THC summary offence caps at a $1,000 fine with no minimum. A federal driving prohibition of 1 to 3 years follows a first conviction, rising to 2 to 10 years for a second and a minimum of 3 years for a third. Ontario adds its own consequences on conviction: a suspension of at least a year, ignition interlock, and mandatory education or treatment, escalating within a 10 year lookback.
Beyond the sentence sits the record, and everything that follows one: insurance, employment that requires driving or bonding, cross-border travel, and immigration consequences for anyone who is not a citizen, each of which turns on your own circumstances. This is why marginal files deserve full defences rather than quick pleas. The alcohol side of the same family, readings, refusals and care or control, is covered on our Toronto impaired driving page, and the breath-number lane on our over 80 defence page.
The Toronto court path
Most people charged with drug-impaired driving in Toronto are released at the scene or the station on an undertaking with conditions. If someone is actually held, the bail hearing runs through the Toronto Regional Bail Centre at 2201 Finch Avenue West. That is the exception, not the rule, and conditions can be varied later where they pinch.
The case itself is an Ontario Court of Justice matter at 10 Armoury Street. A first appearance, usually virtual and administrative. Disclosure: officer notes, in-car and booking video, the evaluation records, and the lab file when it finally lands. A Crown pre-trial where positions start to form. Charter applications where the pipeline broke. Then resolution or trial. The ceiling in R. v. Jordan gives the system 18 months from charge to the end of a provincial court trial, and blood files that sit waiting on lab results can put real pressure on that clock.
We stage the defence to that path. Disclosure gets demanded in the first weeks, the stop-to-sample timeline gets rebuilt while the video still exists, and the Crown hears early and specifically about the holes in the file, because that is when positions are still soft.
Attacking each case
The numbers file gets attacked at its pathway:
- The stop itself, measured against the limits the Supreme Court drew in R. v. McColman.
- The suspicion behind any roadside drug demand, rebuilt minute by minute from notes and video.
- Demand mechanics and immediacy, the ground the Supreme Court covered in R. v. Breault on the alcohol screening side.
- Right to counsel at the station, where R. v. Suberu frames when the right kicks in.
- The evaluation's statutory footing and the evaluator's qualification.
- The two-hour arithmetic, continuity from arm to lab, and the analyst's own file.
- The after-driving consumption exception in s. 320.14(6), which has two conditions only.
The opinion file gets attacked at its substance:
- The quality and consistency of the observations, against video that often shows less than the notes claim.
- Innocent explanations: fatigue, anxiety, medical conditions, language barriers, injuries.
- The conditions of the roadside tests: footwear, weather, instructions, the shoulder of a busy road at night.
- The evaluation's compliance with its statutory pathway.
- The unsettled science, argued from the government's own publications rather than a hired expert alone.
- Statements taken in breach of rights.
Both cases share the Charter framework. Where rights were breached, R. v. Grant governs whether the evidence survives, and R. v. Stinchcombe guarantees the disclosure the whole audit runs on. The win conditions differ, but the method does not: rebuild everything, assume nothing.
The lab file: what we actually read
In a numbers case the exhibit that convicts is a piece of paper from a laboratory, and most accused never learn what sits behind it. We do, because the file behind the number is where numbers cases get won.
Disclosure in a blood file should include more than a one-line concentration. There is the record of who drew the sample, when, and on whose authority. The continuity trail: every hand the vials passed through between the hospital or station and the lab bench. The analyst's own working file, the testing method, and any notes about the sample's condition when it arrived. R. v. Stinchcombe is the lever that gets all of it, and we pull that lever early and specifically rather than waiting to see what the Crown volunteers.
Then the reading gets put back in context. A concentration is a snapshot taken when blood was drawn, not when the car was moving, and the offence is defined by a two-hour window that has to be proven, not assumed. Where the timeline is soft, where the draw came late, or where the paperwork cannot carry the continuity, the number stops being the end of the case and becomes the start of the argument.
How long will a Toronto drug DUI case take?
Longer than you expect, and the delay is not all bad news. The first appearance at 10 Armoury Street usually lands weeks after the charge, and it decides nothing. Disclosure arrives in waves: the notes and video first, the evaluation records after, and in blood files the lab results can take weeks or months on their own. Until the central exhibit exists, the Crown's position is provisional, and so is any advice about pleading.
After disclosure comes a Crown pre-trial, where realistic positions form. Then, where the file has Charter problems, applications get scheduled, and trial dates in this city book months out. The whole journey sits under the ceiling in R. v. Jordan: 18 months from charge to the end of a provincial court trial, with the clock running whether or not the lab is ready.
We treat the calendar as a tool. Early weeks are for preserving what disappears: video, memory, the roadside timeline. The middle months are for the audit and the Crown conversations. And if the system cannot get the file to trial inside the ceiling, the delay itself becomes a defence. What you should not do is burn the early months waiting quietly for a court date, because the evidence that wins these files is oldest and coldest by then.
Released on an undertaking: the next six months
Most Toronto drug DUI accused walk out of the station the same night with a document called an undertaking. Read it twice. It lists your first court date and any conditions attached to your release, and those conditions are court-enforceable promises, not suggestions. Breaching one can bring a brand new charge that complicates everything, including the defence of the original file.
Three practical points. First, conditions that genuinely do not fit your life, work hours, family obligations, medical needs, can often be varied, so raise them with counsel instead of quietly breaking them. Second, the undertaking runs alongside the provincial suspension, not instead of it: driving during the 90 days is its own separate problem with its own penalties. Third, keep every document together, because the undertaking, the suspension notice and the impound paperwork each carry dates the defence needs.
Six months of discipline beats six years of consequences. That is the honest trade these files offer, and clients who treat the release terms seriously walk into their resolution or trial in a far stronger position.
Why Kazandji Law for a Toronto drug DUI
Our head office at 180 John Street, Unit 320 is a short walk from the 10 Armoury Street courthouse, and these files are daily work there. Offices in Thornhill, North York and Oakville cover the rest of the GTA, and the Markham and York Region version of this charge, which runs through the Newmarket courthouse, has its own page: Markham drug DUI lawyer.
What you get is a defence keyed to the case you actually face. Numbers files get the pathway audit: every demand, timestamp, signature and lab record checked against the statute. Opinion files get the substance fight: the observations, the alternatives, and the government's own science put on the stand. The province-wide picture, limits table and contested science included, sits on our Ontario drug DUI page. Cannabis charges beyond driving are covered on the Toronto marijuana offence page, and possession and trafficking files on the Toronto drug offence page.
The first consultation is free, the phones get answered around the clock, and the advice is honest about whether your file is a fight, a negotiation, or both.
What the first call covers. Twenty minutes, no cost, no obligation. You tell us the story once: the stop, the tests, what was said, what paperwork you hold. We tell you which of the two cases you are likely facing, what the roadside consequences mean for the next 90 days, what disclosure will show and when, and what the realistic outcomes look like on files shaped like yours. You leave the call with a plan and a list of what to preserve, whether or not you retain us. And if a family member is calling for you because you are still processing the night, that works too. It happens more often than you would think.
Results matter. See our recent case successes and read our client reviews on Google, then call 647-588-3234 for a free, confidential assessment of yours.
Two ways the Crown builds it. One way to answer both: take the file apart early.
Call 647-588-3234Free consultation, available 24/7. Head office at 180 John Street, Unit 320, Toronto.
Toronto drug DUI: the questions we actually get
Cannabis is legal. How am I facing a criminal charge for it?
Legal to possess does not mean legal to drive on. The Criminal Code makes it an offence to drive while impaired to any degree by a drug, and separately to have a blood THC level at or over the regulated limits within two hours of driving. Toronto police can build either case from a single stop.
What are the blood drug limits?
For THC: 2 nanograms per millilitre for the lower summary offence, 5 nanograms for the hybrid offence, and 2.5 nanograms combined with a 50 milligram blood alcohol level. Cocaine, methamphetamine, ketamine, PCP, LSD, psilocybin and heroin metabolite are set at any detectable level, and GHB at 5 milligrams per litre.
Can Toronto police make me do an oral fluid test at the roadside?
Only with reasonable suspicion that you have a drug in your body and drove within the preceding three hours. The no-grounds screening power that exists for alcohol does not exist for drugs. If the suspicion was thin, everything that followed is on the table.
What happens at the station in a drug case?
On reasonable grounds to believe an offence, police can demand you submit to an evaluation by a specially trained evaluating officer, the role most people know as a Drug Recognition Expert. After it, they can demand oral fluid, urine or blood. Each step has statutory conditions, and each is a place the defence looks.
Can they take blood without my consent?
Police can demand blood after an evaluation, or where other testing is impracticable, and refusing a lawful demand is its own offence. But the demand has to be lawful, the timing matters, and the handling and analysis of the sample are all reviewable in disclosure.
What did I already lose at the roadside?
If police say you performed poorly in a drug evaluation or refused testing, Ontario suspends your licence for 90 days and impounds the vehicle for 7 days, with a $550 penalty and a reinstatement fee. A failed roadside sobriety test brings a 7 day suspension the first time, then 14, then 30.
I drive for a living. What is different for me?
Commercial and CVOR drivers are under zero tolerance: no drugs or alcohol in your system at all, with 3 day roadside suspensions and monetary penalties per occurrence, on top of any criminal exposure. For rideshare, delivery and truck drivers the licence consequences often outrun the fine, which is why these files deserve a full defence review.
My medication is prescribed. Does that end the case?
No. Impairment to any degree by a drug is an offence whether the drug is prescribed or not, and medical cannabis authorization does not exempt you from the blood THC limits. What a prescription does change is the shape of the case: with no published limit for most medications, the Crown needs an opinion case, and opinion cases can be taken apart.
Will I be held for bail?
Most people charged with drug impaired driving in Toronto are released on an undertaking with conditions. If police do hold you, the bail hearing runs through the Toronto Regional Bail Centre at 2201 Finch Avenue West, and the criminal case itself proceeds at the Ontario Court of Justice at 10 Armoury Street.
What are the penalties if convicted?
A minimum $1,000 fine for a first offence, 30 days minimum jail for a second and 120 days for further offences, up to 10 years by indictment, a federal driving prohibition of one to three years, and Ontario consequences of at least a one year suspension with ignition interlock and a mandatory program. The low THC summary offence caps at a $1,000 fine.
Does a high THC reading prove I was a bad driver?
It proves the reading, nothing more, and even the published federal materials acknowledge the science connecting THC numbers to actual impairment is not settled. The per-se offence does not require bad driving, but where the Crown argues impairment we push back with the quality of the observations and the gaps in the evaluation.
What should I do this week?
Save your paperwork, write down the stop, the tests and the times while you remember them, stay off social media about it, and get advice before your first appearance at 10 Armoury Street. Call 647-588-3234 for a free consultation. Our head office is at 180 John Street, a short walk from the courthouse.
This page explains Ontario and federal law in general terms as it stood in July 2026. It is legal information, not legal advice about your situation. Statutes, regulations and roadside penalty programs change, and every case turns on its own facts. Speak with a lawyer before acting on anything here. Kazandji Law serves clients across the Greater Toronto Area from offices in Toronto, Thornhill, North York and Oakville.