Blue Line

New London Police deputy chief announced

April 11, 2024  By London Police Service

Apr. 11, 2024, London, Ont. – The London Police Service Board is pleased to announce the appointment of Treena MacSween as London’s third deputy chief of police, effective April 22, 2024. Deputy Chief Designate MacSween joins the London Police Service with over 26 years of policing experience, including with the Peel Regional Police Service and the Hamilton Police Service, in progressive leadership roles managing operational, investigative, and administrative portfolios.

A visible and engaged leader, Deputy Chief Designate MacSween is committed to forging collaborative partnerships to develop and shape community safety strategies and improving relationships with the community. She is a staunch advocate for creating inclusive work environments and prioritizing member wellness. This is an image of Deputy Chief Designate Treena MacSween

“On behalf of the London Police Service Board, it brings me great pleasure to welcome Treena MacSween to the London Police Service as our city’s newest deputy chief. Recognized across our province and country as a trailblazer who has broken barriers throughout her career, Deputy Chief Designate MacSween was the Hamilton Police Service’s first person of colour promoted to the rank of Inspector in 2017 and once sworn in on April 22, 2024, she will become the highest ranking black female officer in Canada. Under the leadership of Chief Truong, the addition of Deputy Chief Designate MacSween to the London Police Service’s senior executive team represents an important and meaningful step towards the Board’s vision to make London a Safer City Now,” said Ali Chahbar, Chair, London Police Service Board.

Described as a trailblazer, Deputy Chief Designate MacSween has been honoured with numerous awards and accolades in her policing and community roles. In 2017, she broke barriers by becoming Hamilton Police Service’s first person of colour promoted to the rank of Inspector. Her subsequent promotion to Superintendent in 2021 solidified a legacy as the fourth woman to achieve that rank in the Service’s history.


“On behalf of the London Police Service, I extend my congratulations to Deputy Chief Designate Treena MacSween and to her family, as she joins our incredible team of dedicated sworn and civilian members. London Police Service is a progressive organization, and we look forward to working alongside her. She will undoubtedly strengthen our leadership team as we continue to move the London Police Service forward. Her experience, passion and commitment to community safety, community trust and organizational wellness will be a tremendous asset to the London Police Service and our community. I would also like to thank the London Police Service Board for their continued support,” said Thai Truong, Chief, London Police Service.

The appointment of Deputy Chief Designate MacSween marks a historic moment for the London Police Service, as she will be the first woman of colour to join the command team cadre. Upon the appointment taking effect, she will notably become the highest-ranking black female police officer in Canada.

Outside her professional realm, Deputy Chief Designate MacSween cherishes her role as a mother to two daughters, Taylor and Alexis, who she encourages to dream big and leap far in all aspects of life. Her partnership with husband Mike, a firefighter, underscores their family’s commitment to public service and public safety.

“I am truly honoured to have been selected as London’s newest deputy chief and I wish to extend my gratitude to the London Police Service Board for placing their trust in me. Under the visionary leadership of Chief Truong, the London Police Service has embarked on a transformative journey. I look forward to contributing to the realization of Chief Truong’s priorities: improving community safety, strengthening community trust, and advancing organizational wellness. As a strong advocate for creating inclusive and supportive work environments, I am excited to work alongside the dedicated women and men who serve the great city of London. Recognizing that fostering relationships and enhancing community safety and well-being is a collective effort, I am eager to engage with our community partners in pursuit of these goals,” said Treena MacSween, Deputy Chief Designate, London Police Service.

Over the past year, the London Police Service Board has embarked on a comprehensive journey to ensure the London Police Service is positioned to provide exceptionally better service to the residents of London. Whether it’s securing necessary investments in our frontline officers and civilian staff, making additions to the senior leadership team, or implementing new policies and expectations to ensure effective accountability, the Board continues to do everything possible to ensure London becomes a Safer City Now.

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