No proceeding shall be commenced pursuant to this chapter when any criminal or civil
action involving the same grievance has been filed with, is pending before or has
been disposed of by a court. In the event any criminal or civil action concerning
a grievance is commenced in any court during the pendency of any proceeding filed
pursuant to this chapter for the same grievance, the proceeding shall be automatically
ended. No proceeding shall be commenced or pursued under this chapter when the grievance
is the subject of any civil or criminal action. Nothing in this chapter shall deprive
any other board, commission or agency of the city of any jurisdiction or authority
granted to the board, commission or agency by any other provision of law. (Code 1963,
Sec. 2-150)