The John Howard Society of Canada (JHSC) brought a motion for leave to intervene as an added party in three joined habeas corpus applications.
The applicants, who are inmates, challenged the denial of their requests to transfer to minimum-security institutions.
The JHSC sought to intervene on the threshold question of whether such a denial constitutes a deprivation of liberty.
The court granted the motion on terms, finding that the JHSC had a genuine interest and could make a useful contribution regarding the constitutional and practical context of transfer decisions.
However, the court restricted the JHSC from participating in the development of the evidentiary record to avoid duplication and prejudice.