The applicant union sought judicial review of a Grievance Settlement Board (GSB) decision regarding a grievance for a poisoned work environment.
The GSB found that the grievor's rights were violated but concluded it lacked jurisdiction to award damages for mental stress, stating the Workplace Safety and Insurance Act (WSIA) was the appropriate forum.
The applicant argued the GSB's decision was unreasonable because it simultaneously found the employer's conduct fell within the WSIA's 'employment function' mental stress exclusion while directing the grievor to the WSIA scheme.
The Divisional Court agreed, allowed the application, and remitted the matter back to the same GSB arbitrator to properly determine whether the exclusion applied.