Employer forces employees to sign dox to prove compliance with labor laws; ULP?

The pivotal question in any case where unfair labor practice on the part of the employer is alleged is whether or not the employer has exerted pressure, in the form of restraint, interference or coercion, against his employee's right to institute concerted action for better terms and conditions of employment. Without doubt, the act of compelling employees to sign an instrument indicating that the employer observed labor standards provisions of law when he might have not, together with the act of terminating or coercing those who refuse to cooperate with the employer's scheme constitutes unfair labor practice. The first act clearly preempts the right of the hotel's workers to seek better terms and conditions of employment through concerted action. (G.R. No. 118506; April 18, 1997)