LOS ANGELES COUNTY PROFESSIONAL PEACE OFFICERS' ASSOCIATION et al. , Appellants, v. COUNTY OF LOS ANGELES et al. , Respondents. [FN 2] Under the applicable County ordinances, D. A. investigators may accumulate up to 320 hours in current and deferred vacation time. (L. A. County Code, § 6. 20. 070F. 1. ) When Kupper and Layne retired, each was paid back for all accumulated vacation hours. Kupper, Layne, and their union, the Los Angeles County Professional Peace Officers' Association (the Association) brought a mandate petition (Code Civ. By failing to make the payment, they alleged, the County violated its obligation to fully compensate them during that period (Lab.

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