Maureen Killoran, KC Maureen Killoran, KC

Supreme Court of Canada finds the federal Impact Assessment Act unconstitutional

On October 13, 2023, the Supreme Court of Canada found Canada’s federal Impact Assessment Act unconstitutional in part. We discuss the Court’s...

Supreme Court of British Columbia finds that Province has a duty to consult on mineral tenure claims

A recent Supreme Court of British Columbia decision has important implications for mineral tenure systems across Canada.

Treaty rights and resource development: The cumulative effects claims begin to pile up

Our 2021 Legal Year in Review update discussed the landmark B.C. Supreme Court decision in Yahey v. British Columbia (Yahey) which held that the...

Update on legally-binding contracts with First Nations

Band council resolutions are not mandatory for contracts with a First Nation, according to an Alberta Court of Appeal decision.

Supreme Court of Canada clarifies law on de facto expropriation

On October 21, 2022, the Supreme Court of Canada (SCC) released its decision in Annapolis Group Inc v. Halifax Regional Municipality which revisited...

Treaty infringement claims for cumulative effects come to Alberta

This July, the Duncan’s First Nation (DFN) in northern Alberta filed a claim against the province alleging an unjustifiable infringement of their...

British Columbia and Tahltan Nation enter into landmark consent-based decision-making agreement

On June 6, 2022, the Tahltan Nation and British Columbia entered into the first consent-based decision-making agreement negotiated under B.C.’s...

Alberta Court of Appeal finds federal impact assessment regime unconstitutional

In this Osler Update, we summarize the key aspects of the decision for proponents and businesses subject to federal environmental laws.