The union applied to certify a bargaining unit of security officers and to combine it with an existing full-time bargaining unit.
The employer argued that section 6(6) of the Labour Relations Act precluded the combination because the security officers monitored other employees, creating a conflict of interest.
The Board agreed, finding that the statutory requirement for a separate guards unit under section 6(6) could not be circumvented by a combination application.
The certification was granted for a separate unit, but the combination application was dismissed.