The complainant union alleged that the employer terminated six employees contrary to the Labour Relations Act after they engaged in union organizing.
The employer claimed the terminations were the result of a prior business decision to contract out the work.
The union argued that findings of fact from a prior dismissed unlawful lockout application were res judicata.
The Board held that the prior findings were not binding because they were not necessary to the ultimate dismissal of that application.
However, on the evidence, the Board found that the decision to contract out was crystallized only after the employer learned of the union activity, and was therefore motivated at least in part by anti-union animus.
The Board ordered the employees reinstated with compensation.