R. v. Singer and what it means for warrantless searches on private property.
The Supreme Court of Canada has handed defence lawyers a nuanced but important new weapon and a fresh reminder that warrantless searches on private property remain presumptively unreasonable, even when a court ultimately lets the evidence in.
The facts in a minute
RCMP officers received a complaint about a speeding truck, described only by colour and make, in a small Saskatchewan community. They spotted a matching truck running in a residential driveway, stepped onto the property, and found Wayne Singer asleep at the wheel. After knocking on the window without response, officers opened the truck door, smelled alcohol, demanded a breath sample (fail), then arrested Singer when he refused a second sample at the station. He was charged under the Criminal Code for refusing to comply.
Singer argued the entire chain of evidence was poisoned by an unconstitutional entry onto his driveway. No warrant. No consent. No hot pursuit. The trial judge disagreed; the Saskatchewan Court of Appeal sided with Singer and acquitted him. The SCC split sharply.
What the majority decided
The 5-judge majority drew a precise, two-stage line:
Stage 1 — Entering the driveway & knocking
Officers had an implied licence at common law to walk up the driveway and knock on the truck window. This is the same principle that allows anyone, delivery driver, neighbour, police officer, to approach a front door. Walking onto the driveway did not constitute a “search” under s.8 of the Charter. The police were investigating a legitimate public safety complaint; the truck was in plain view; and there were no barriers or signs posting the property as off-limits.
Stage 2 — Opening the truck door
This crossed the line. The implied licence extends only to the door of the dwelling (or, here, the truck as a vehicle on private property). Opening the door was a search under s.8, and a warrantless search is presumptively unreasonable. The Crown failed to establish the subjective element of the safety-search power because the officers never testified about concern for public safety at trial, the issue had not been raised below. The s.8 breach was real.
Yet the majority still admitted the evidence under s.24(2), applying the Grant balancing test. They found: (1) the Charter breach was not egregious, police arguably had reasonable grounds and made a reasonable legal error; (2) the privacy impact was moderate, a vehicle in a driveway carries less expectation than the interior of a home; (3) impaired driving is a serious offence and the evidence was essential to the Crown’s case. The third factor carried the day.
Key highlights for defence counsel
- The SCC unanimously confirmed that individuals have a reasonable expectation of privacy in the approach to their home, including the perimeter/driveway, just a diminished one compared to the interior of a dwelling.
- The implied licence doctrine is a waiver of privacy, not a police power. It allows police to do what a member of the public can do, approach and knock. It does not authorize arrest, search, or detention. Those require independent legal authority.
- Police intention matters. Where evidence clearly shows officers entered private property specifically to gather evidence against the occupant, not merely to communicate, the majority says that purpose can take the visit outside the implied licence. The dissent goes even further: any investigative purpose to gather evidence via the senses exceeds the licence.
- A warrantless search is still presumptively unreasonable. The Crown bears the burden on a balance of probabilities to justify it. Singer reaffirms this.
- The “safety search” power (recognized in MacDonald) requires both subjective and objective grounds. If police cannot give evidence of their subjective safety concern, the power fails. Counsel should press this at trial whenever officers claim safety as a justification for a warrantless entry.
- The Court refused to create any new ancillary police power (all nine judges agreed on this). The Crown’s attempt to get a judge-made power to enter private driveways to investigate suspected impaired drivers was firmly rejected.
- The dissent, four judges, would have excluded the evidence entirely, finding the breach serious and situating it within the broader context of over-policing of Indigenous peoples. This contextual analysis under s. 24(2) remains live and important, especially where the accused is Indigenous and the property is on a reserve.
The Dissent: A Stronger Shield
Four judges: a near-miss for the defence bar
O’Bonsawin, Moreau, and Karakatsanis JJ. would have held the police exceeded the implied licence from the moment they set foot on the property with an investigative purpose. Martin J. concurred on the breach, and added a detailed critique of the ancillary powers doctrine, warning that judge-made police powers must comply with the Charter and that courts must resist creating new powers simply because the Crown cannot satisfy the conditions of an existing one. With four judges endorsing exclusion, Singer is far from a clean Crown victory — it is a case where the outcome turned on a single evidentiary gap at trial: the officers’ failure to give evidence of subjective safety concern.
When should defence lawyers reach for Singer?
| Scenario | Argument | Strength |
|---|---|---|
| Police entered a driveway/yard and opened a vehicle door without warrant | Opening the door was a warrantless search; Crown must justify it | Strong |
| Police entered with a clearly stated investigative purpose (stated in notes, radio traffic, or testimony) | Entry itself may exceed the implied licence under the dissent’s approach; still relevant to s. 8 analysis for the majority | Strong |
| Crown relies on safety search to justify opening a door or container on private property | Cross-examine on subjective safety concern — no officer testimony = power fails | Strong |
| Accused is Indigenous; search occurred on reserve or in an Indigenous community | Context of over-policing amplifies impact of breach under s. 24(2) Grant analysis | Strong |
| Crown argues a new or expanded ancillary police power to justify entry | Singer and all nine judges reject expansion of ancillary powers; cite Martin J.’s dissent for the framework | Strong |
| Police entered a fenced yard or passed a gate/barrier to reach the vehicle | Physical barrier defeats implied licence entirely — Singer’s “plain view, no barrier” finding underscores this | Strong |
| Search of interior of home (not vehicle) after warrantless driveway entry | Stronger privacy interest in dwelling amplifies both the breach and the exclusion argument | Strong |
| Impaired driving offence — Crown argues serious offence justifies admission | Singer itself admitted the evidence; temper exclusion expectations but still challenge the breach; argue subjective safety failure, Indigenous context, or more serious breach on the facts | Context dependent |
| Police approached front door and occupant came out voluntarily | Implied licence applied; no breach — Singer confirms this is lawful police conduct | Weak |
The bottom line
Singer does not hand police a green light to enter private property and poke around vehicles. It confirms a real s.8 breach occurred and rejects any new police power to conduct warrantless investigations on private land. What saved the Crown was a specific evidentiary failure by Singer’s trial counsel: no one argued the safety search issue below, so there was no subjective evidence to test. That gap should not repeat itself.
For defence lawyers, the lesson is twofold. First, challenge warrantless entries onto private property at every opportunity, the constitutional framework is firmly on your side. Second, if the Crown raises safety as a justification, hold them to both limbs: subjective concern and objective grounds. Singer shows that failing either limb means the search was unauthorized, even if the evidence ultimately survives s. 24(2) on these particular facts.
Given the four dissenting judges and the fact that the majority’s admission of evidence turned on a paper-thin distinction about what was argued at trial, Singer is a case where the defence came very close to a full acquittal at the Supreme Court level. It should be cited early and often in any case involving a warrantless police entry onto a client’s property.
