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ASIRT preliminary report finds woman held knife before Calgary officer fired police rifle

by Bella Henderson
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ASIRT preliminary report finds woman held knife before Calgary officer fired police rifle

ASIRT preliminary report details officers’ use of projectile launcher, Taser and rifle after Deerfoot SUV confrontation

ASIRT preliminary report says officers deployed a projectile launcher, a Taser and a police rifle after a woman holding a knife exited an SUV on Deerfoot Trail, about 20 minutes after she had been located inside the vehicle.

ASIRT releases preliminary account

ASIRT’s preliminary report describes the moments leading up to a use-of-force response after officers located a woman inside an SUV on Deerfoot Trail. The report states the woman confronted officers about 20 minutes after she had been located in the vehicle. After she exited the SUV while holding a knife, officers deployed a projectile launcher and a Taser, and one officer discharged a police rifle, according to the document.

The preliminary account does not make a final determination on whether the force was justified, and it is explicitly labeled as an early disclosure of facts gathered to date. ASIRT is the Alberta Serious Incident Response Team charged with investigating incidents involving serious injury, death or the discharge of a firearm by police.

Timeline from SUV to confrontation

According to the preliminary report, officers initially located the woman inside her vehicle and then engaged in actions that continued for roughly 20 minutes before the confrontation. The report indicates there was a temporal gap between the initial location of the vehicle and the moment the woman exited and confronted officers. That interval forms a central part of ASIRT’s timeline as investigators seek to reconstruct what occurred during those minutes.

ASIRT’s early description focuses on the sequence rather than final conclusions, noting the location of the vehicle, the woman’s exit while armed with a knife, and the subsequent deployment of force options by responding officers. Investigators will refine the timeline as they review video, radio communications and witness statements.

Less-lethal tools and rifle discharge

The preliminary document specifies that officers used a projectile launcher and a Taser after the woman stepped out of the SUV. Those tools are typically categorized as less-lethal options intended to subdue or disarm an individual while reducing the risk of fatal injury. ASIRT also reported that one officer fired a police rifle during the incident, a detail that elevates the investigation given provincial protocols on firearm discharges.

The report does not provide detailed technical data about the projectile launcher rounds or how many times the rifle was fired. ASIRT’s ongoing review is expected to include forensic analysis of any munitions, examination of body-worn and in-vehicle cameras, and an assessment of whether the tools used complied with police training and policy.

Scene on Deerfoot Trail and public impact

The confrontation occurred on Deerfoot Trail, a major arterial route, where an SUV was the focal point of the police response. Incidents of this nature on busy roadways typically prompt rapid emergency deployments and can create significant traffic disruption, though ASIRT’s preliminary account focuses on the operational details of the encounter itself. The precise time of day and the extent of any road closures were not outlined in the early report.

ASIRT’s public summary concentrates on the actions of the woman and of officers involved, but the broader implications for motorists and bystanders also factor into the public interest in the investigation. Local authorities often coordinate traffic management and public safety updates after such events, and further information may be released by police or municipal officials as the review progresses.

Investigative process and evidence collection

ASIRT’s mandate requires a systematic collection of evidence to determine whether the use of force complied with law and policy. The preliminary report is the first step in what the agency describes as a thorough investigation that typically includes interviews with officers and witnesses, seizure and analysis of devices and weapons, and review of any available audio and video recordings. Forensic examination of physical evidence and medical records is also standard practice.

The agency has authority to obtain materials from municipal police services and, if relevant, to consult independent experts. ASIRT will compile its findings into a final report that may make recommendations or refer matters to Crown prosecutors if criminal conduct is suspected. The timing for the conclusion of such investigations varies depending on the volume of evidence and the complexity of the incident.

Oversight, transparency and next steps

ASIRT’s publication of a preliminary report is intended to provide an early public account while the investigative process continues. The agency’s role as an independent oversight body aims to ensure transparency and public confidence in reviews of serious incidents involving police. Families of those involved, legal representatives and community stakeholders often await ASIRT’s final conclusions for clarity on accountability and corrective measures, if any.

Officials have signaled that additional updates will be provided as key investigative milestones are reached and as legally permissible information becomes available. The outcome of ASIRT’s investigation could influence policing policy, training, and the handling of similar encounters in Alberta.

The ASIRT preliminary report establishes the basic facts that officers deployed a projectile launcher and a Taser and that one officer fired a police rifle after a woman holding a knife exited an SUV on Deerfoot Trail roughly 20 minutes after she had been located inside the vehicle, and investigators say they will continue collecting evidence and interviewing witnesses before reaching final conclusions.

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