The new chiefs, tasked with law enforcement for thousands of residents, will rank among the highest-paid employees in their cities and head departments with dozens of officers.
The former Ballwin police chief is suing the city, alleging that elected officials conspired to illegally oust him in a "sham hearing" as an act of retaliation.
Former Ballwin Police Chief Doug Schaeffler sued the city of Ballwin after he was fired from the job by a unanimous vote from the board of aldermen in December.