Hearings upon demand for investigation or review of disciplinary actions taken by the appointing authority shall be quasi-judicial in nature and shall be conducted de novo. The inquiry of the commission shall be limited in such matters to the determination of the question of whether the removal, suspension, demotion, or discharge was or was not made for political or religious reasons, and was or was not made in good faith for cause. (Ord. 1380 § 1, 1990; Ord. 1247 § 1, 1987; Ord. 1190 § 1, 1985; Ord. 895 § 2, 1978).