Four applicants brought motions for leave to intervene in an appeal concerning the constitutionality and interpretation of war crimes provisions in the Criminal Code.
Three public interest groups sought to intervene on issues of international law and Canada's obligations regarding war crimes.
A private individual also sought to intervene based on his expertise.
The Supreme Court of Canada granted leave to the three public interest groups, finding they had a direct interest and could provide useful and novel submissions.
The Court denied leave to the private individual, concluding he lacked a direct stake in the outcome of the appeal.