531 A.2d 76 City of Carbondale, Appellant v. Fraternal Order of Police Lodge 63 and John Barbaro and Walter Connor, Appellees. Commonwealth Court of Pennsylvania. September 14, 1987. Arbitration — Scope of appellate review — Essence test — Act of June 24, 1968, P.L. 237 — Police promotions — Absence of regulations — Past practices. […]