For the benefit of the public service and to prevent delay, injury or interruption therein by reason of the enactment of this chapter, all persons having completed probation in the police and fire departments and entitled to civil service coverage are hereby declared regularly appointed under civil service to the offices, places, positions or employments which they shall then hold respectively, and not on probation; and every such person is hereby automatically adopted and inducted regularly into civil service, into such office, place, position or employment which such person then holds even though that office, place, position or employment is not subject to the civil service requirements of this chapter. Nothing in this chapter shall be construed to exculpate or excuse any conduct of any employee committed or engaged in prior to the enactment of the ordinance codified herein and such conduct may be considered by the appointing authority and the commission in any disciplinary action taken with respect to an employee whose position is covered by this chapter. (Ord. 1380 § 1, 1990; Ord. 1247 § 1, 1987; Ord. 1190 § 1, 1985; Ord. 895 § 2, 1978).