Board Staff

In his role, Louis is instrumental in advancing public trust, accountability, and safety through modern, transparent policing and drives the momentum behind the Board’s strategic direction, policy innovation, budget leadership, media engagement, and high-stakes government and stakeholder relations.

Louis brings extensive experience in law, public service, governance, and risk management. Prior to joining the Board, he served as General Counsel at Harlo Capital and held senior roles in the Office of the Mayor of Toronto, including Executive Director, Finance & Legal Affairs. In that capacity, he advised on City budgets, led key COVID‑19 financial response work, and oversaw the Mayor’s policing reform and community safety agenda. He also played a central role in creating the Toronto Community Crisis Service, the City’s first non‑police crisis response program. Named one of Canadian Lawyer’s Top 25 Most Influential Lawyers in 2022, Louis holds degrees in law, global affairs, and commerce

As the Board’s Indigenous Engagement Advisor, Kaitlyn develops, leads, and implements engagement strategies with diverse First Nations, Inuit and Métis members of the diverse urban Indigenous community of Tkaronto (Toronto), including youth, Elders, and Knowledge Carriers, and Treaty and Territorial Rightsholders, on behalf of the Board. Kaitlyn is a Mohawk woman from Kenhtè:ke, which is the Tyendinaga Mohawk Territory. She is a member of the Mohawks of the Bay of Quinte and belongs to the Wolf clan. Kaitlyn brings experience in the fields of Indigenous post-secondary education and violence against women.

Kaitlyn’s efforts are an extension of the Board’s commitment to the Truth & Reconciliation Report, The National Inquiry into Missing and Murdered Indigenous Women & Girls, the Missing and Missed report, and the Board’s 81 Recommendations for Police Reform. She is dedicated to fostering reconciliation between Indigenous and non-Indigenous peoples by working to bridge gaps in understanding, and actively works to build and nourish relationships that are rooted in reciprocity and respect. Kaitlyn plays a critical role in leading the successful outreach and community engagement with members of the diverse Indigenous nations and their communities, as a vital part of the Board’s responsibility to foster meaningful relationships and engagement on matters that are deeply important, in order to ensure it properly and fully fulfils its civilian oversight and governance roles.

Diana Tsui leads strategic planning, policy development, and performance measurement to advance the Toronto Police Service Board’s statutory governance and oversight mandate. Her core areas of focus include shaping the Board’s long‑term strategic vision and priorities, developing effective and evidence‑based policing policies, and building the frameworks and practices essential for good governance and public accountability.

Diana brings extensive public sector experience spanning the City of Toronto, Queen’s Park, the Province of Ontario, and the non‑profit sector, where she advanced initiatives aimed at driving transformational and systemic change. During her time across several City of Toronto divisions, she led major regulatory policy and municipal bylaw development, community‑infrastructure planning and neighbourhood revitalization, and social service delivery reform.

Across all her roles, Diana brings a deep commitment to public and community service, innovation, and continuous improvement—ensuring that public policy, programs, and services are responsive to community needs, equitable, grounded in evidence, and deliver measurable value and impact.

She holds a Master of Public Policy from the University of Toronto, as well as a Master of Arts in Socio‑Legal Studies, a Graduate Diploma in Justice System Administration, and a Bachelor of Arts in Law and Society from York University.

In her role, Diana is responsible for the maintenance of the Board’s official record of decisions, and she ensures that all Board matters and decisions are properly recorded, followed up on and implemented.

Diana has vast experience in law clerk and paralegal roles, having worked with law firms, the Ministry of Attorney General and the Office of the Independent Police Review Director (OIPRD). She started her career as a law clerk in the private sector, eventually moving to government, first joining the Ministry of the Attorney General with the Office of the Public Guardian and Trustee. Diana then moved on to the OIPRD in the capacity of a law clerk, where she provided support to OIPRD counsel, prepared various legal documents for filing with the courts, and oversaw the OIPRD’s Freedom of Information (FOI) requests. Diana is a graduate of Seneca College with an Honours Paralegal Diploma and is Licensed Paralegal with the Law Society of Ontario. Diana also has an Alternative Dispute Resolution Certificate at Seneca College and is a former volunteer with the North York Community Legal Aid Clinic. 

Sheri provides day-to-day executive assistance to the Chair and other Members of the Board.

Sheri has been a member of the Toronto Police Service since 1999. In her time with the Service, Sheri worked in Employee Records and Staff Planning and Development, before coming to the Board Office in 2005. During Sheri’s time in the Board Office, she has provided administrative support to staff and Board members, worked on a comprehensive policy review and was promoted to her current position in 2016.

Nathalie provides day-to-day executive assistance to the Executive Director and Board staff. Prior to joining the Board office in 2023, Nathalie has been a member of the Toronto Police Service since 2006. In Nathalie’s time with the Service, she provided executive administrative support in Accounting Services and Employee Services (formerly Financial Management), Budget & Financial Analysis, and Finance & Business Management. In her tenure, she streamlined workflow processes that optimized efficiencies in time management and accountability.

Etheline Komoseng is the Board’s part-time administrative assistant, providing much-needed administrative support to the entire Board Staff.

Previously, Etheline spent over 26 years combined working with the Toronto Police Service and the Toronto Police Services Board. She has worked in Records Management, Accounting and Payroll units (formerly Financial Management), Budgeting and Financial Analysis (formerly Budgeting and Control), and Finance & Business Management (formerly Finance and Administration). When she retired, Etheline left a successful career to focus on her family. After three years, she returned to the Board and feels blessed to have this perfect balance in her work life and personal life. Etheline is an advocate and great supporter to individuals with Autism Spectrum Disorder.