What must an accusation of unfair labor practice include?
We have already held that when a labor union accuses an employer of acts of unfair labor practice allegedly committed during a given period of time, the charges should include all acts of unfair labor practice committed against any and all members of the union during that period. The union should not, upon dismissal of the charges first preferred, be allowed to split its cause of action and harass the employer with subsequent charges based upon acts committed during the same period of time (Dionela, et al. v. CIR, No. L-19334, August 31, 1963, 8 SCRA 832 at 837).
