The Information Commissioner investigates complaints from people who believe they have been denied rights under the Access to Information Act — Canada's freedom of information legislation. An independent ombudsman appointed by Parliament, the Information Commissioner has strong investigative powers and mediates between dissatisfied applicants and government institutions.

As an ombudsman, the commissioner may not order a complaint resolved in a particular way. Thus the commissioner relies on persuasion to solve disputes, asking for a Federal Court review only if an individual has been improperly denied access and a negotiated solution has proved impossible.