Supreme Court dismisses appeal where employer unilaterally changes bonus rules retroactively without employee consent under Labor Code.

The Supreme Court dismissed the Ombudsman's cassation appeal against a lower court ruling that rejected an employee's claim for a bonus. The employee argued that a new bonus regulation, which made the award dependent on the employer's discretionary approval, could not apply retroactively to the period before its effective date. The court held that if the right to the bonus stems from the employment contract, such a detrimental change requires the employee's consent, rendering the unilateral retroactive modification void.