Chief Justice
McLachlin, writing for a unanimous court, found that the Crown has a "duty to consult with Aboriginal peoples and accommodate their interests". This duty is grounded in the honour of the Crown, and applies even where title has not been proven. The scope of this duty will vary with the circumstances; the duty will escalate proportionately to the strength of the claim for a right or title and the seriousness of the potential effect upon the claimed right or title. However, regardless of what the scope of the duty is determined to be, consultation must always be meaningful. Where there is a strong
prima facie case for the claim and the adverse effects of the government's proposed actions impact it in a significant (and adverse) way, the government may be required to accommodate. This may require taking steps to avoid irreparable harm or minimize the effects of the infringement. Both sides are required to act in good faith throughout the process. The Crown must intend to substantially address the concerns of the Aboriginal group through meaningful consultation, and the Aboriginal group must not attempt to frustrate that effort or take unreasonable positions to thwart it. On the facts of the case, the Court found that the Haida Nation's claims of title and an Aboriginal right were strong, and that the government's actions could have a serious impact on the claimed right and title. Accordingly, the Crown had a duty to consult the Haida Nation, and likely had a duty to accommodate their interests. The Crown's duty of good-faith consultation does not extend to third parties, and cannot be delegated to them by the Crown. This is not to say that third parties cannot be liable to Aboriginal groups in negligence, or for dealing with them dishonestly. However, it does mean that the legal obligation of consultation and accommodation is shouldered exclusively by the Crown. Accordingly, the Crown's appeal was dismissed and Weyerhauser Co.'s appeal was allowed. == Environmental and Indigenous Justice Perspectives ==