Arbitration clause in labor dispute is invalid; case must be heard by labor court under civil procedure code.

The Supreme Court vacated the lower courts' decision to transfer a labor dispute to an arbitration court. The union argued that an arbitration clause in a representation agreement should bar court proceedings, while the lower courts relied on a specific exemption for labor matters. The court ruled that arbitration clauses cannot apply to labor disputes, rendering the transfer to arbitration invalid and mandating the case be heard by the labor court.