Patricia Kosseim brings to the IPC significant experience and a wealth of knowledge in the areas of privacy and access law, having worked in public, private and health sectors, and across various jurisdictions.

Prior to joining the IPC, Patricia was counsel in Osler’s Privacy and Data Management Group where she provided strategic advice to clients on matters of privacy, data governance, and access law. She also led a number of thought leadership initiatives as national co-leader of Osler’s AccessPrivacy knowledge platform.

For more than a decade, Patricia served as senior general counsel and director general at the Office of the Privacy Commissioner of Canada in Ottawa. During that period, she was responsible for advancing a number of major cases before the federal courts and the Supreme Court of Canada; advising on critical privacy investigations; appearing before parliamentary committees on significant legislative bills; developing national and international policies; leading a national research funding program; and, overseeing a technology analysis team and laboratory.

While holding executive positions at Genome Canada and the Canadian Institutes of Health Research, Patricia developed and led national strategies for addressing legal, ethical, and social aspects of health research and genomics technologies. She began her career in Montreal practicing in the areas of health law, civil litigation, human rights, privacy, and labour and employment with a leading national law firm.

Patricia has published and spoken extensively on matters of privacy law, health law, and ethics.  She has taught part-time at the University of Ottawa Faculty of Law and has held many professional appointments and board memberships, including as a member of the Board of Governors of the Ottawa Hospital; chair of the Board of Directors of the Ottawa Hospital Research Institute; vice-chair of the Research Integrity Committee of les Fonds de recherche du Quebec; member of the National DNA Databank Advisory Committee; and member of various expert working groups of the Organization for Economic Co-operation and Development.

Patricia obtained her business and law degrees from McGill University in Montreal, and a Master’s Degree in Medical Law and Ethics from King’s College, University of London. She is a member of the Law Society of Ontario, as well as the Barreau du Quebec, and is fluently bilingual in both official languages.

When she is not in the office — either physically or virtually — Patricia enjoys all-season, outdoor activities with her family and their dog Rocky.


Assistant Commissioner, Strategic Initiatives and External Relations

Eric Ward is Assistant Commissioner, Strategic Initiatives and External Relations.

Eric joined the IPC from the Government of Canada, where his career spanned law, policy, management, and strategic foresight. Eric practised privacy and information law as counsel to Health Canada and the Public Health Agency of Canada, and also as Senior Counsel at the Department of Justice’s Centre for Information and Privacy Law. Eric directed machinery of government and legal operations teams at the Privy Council Office.

At the start of his career, Eric worked on children’s rights issues for the Honourable Senator Landon Pearson, and was a judicial clerk to Justice Frank Iacobucci of the Supreme Court of Canada.

Immediately prior to joining the IPC, Eric was the Senior Director at Policy Horizons Canada, the federal government’s centre for strategic foresight. In that position, Eric directed teams investigating potential future developments in fields ranging from Canada’s changing sense-making and information environments, to shifts in sources of economic value, to the convergence of biology and digital technologies.

Eric holds degrees in civil and common law from McGill University and is a member of the Law Society of Ontario.


Assistant Commissioner, Tribunal and Dispute Resolution Services

Warren Mar is Assistant Commissioner, Tribunal and Dispute Resolution Services.

Prior to joining the IPC, Warren spent the majority of his career at the municipal level of government in Ontario. He was the head legal counsel for two municipalities for over 10 years, most recently as the Commissioner of Legal and Enforcement Services for the Town of Whitby. As the Town’s Solicitor, Warren provided legal advice, direction, and strategic corporate leadership to staff on a diverse range of issues, with a focus on municipal, access to information, enforcement, and planning law. Prior to Whitby, Warren served as the Town Solicitor and Director of Legal and Legislative Services with the Town of Aurora. During his career, Warren has led numerous transformative corporate initiatives and directly guided staff in multi-disciplinary departments.

Warren holds an Honours Bachelor of Arts degree in Urban Studies and Political Science from the University of Toronto, a Bachelor of Laws degree from Osgoode Hall Law School, and a Masters Certificate in Municipal Leadership from the Schulich School of Business. He has been a practising lawyer and member of the Law Society of Ontario since 2004.


Chief Financial Officer and Director of Corporate Services

Edward Jason Arandjelovic, aka “Jason,” joined the Information and Privacy Commissioner of Ontario (IPC) in May 2021 as the new Chief Financial Officer and Director of Corporate Services.

Jason joined the IPC from the Ontario Public Service (OPS), where he started his career back in 1998. Over the course of his twenty-three-year career in the OPS, Jason worked at various OPS ministries in several different roles.

In 2016, he became the Finance Director at the Ministry of Municipal Affairs and Housing (MMAH), where he led MMAH’s strategic multi-year fiscal planning process and financial management framework, supporting government priorities in achieving program objectives, cost efficiencies, and program modernization.

In 2019, he took on another leadership role in MMAH as Acting Director of Corporate Services, where he supported MMAH’s policy agenda and implemented OPS corporate initiatives and ensured compliance with OPS directives and policies. In this role, Jason also led MMAH’s I&IT initiatives and digital strategies, freedom of information procedures, and facilities management.

Jason holds a Bachelor of Arts in Economics from York University, and he is also a Chartered Professional Accountant, Certified Management Accountant.

During his personal time, Jason enjoys the company of friends and family, and he is currently learning how to play the piano.


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