Officer Keith Houts, a one-year veteran, was shot in the face during a traffic stop near the downtown area on Thursday.
Officials say Houts was working an overtime traffic enforcement when he stopped a gray Chevrolet on North Decatur Street.
They say the officer approached the vehicle and the male suspect pointed a gun at him and fired.
No arrests have been made, but detectives say they have several promising leads.
Police encourage anyone with information to call the Secret Witness Line at 334-262-4000 or 241-2651.