Indiana Police Scanner Codes, AI Report 3. Scanner Frequencies - Police, Fire & EMS Scanner Frequency Database. P. Traff. It includes codes to indicate the situation, request backup or EMS, report criminal activity such as thefts or shootings, Ten Codes As Used In Indiana . Our main interest is the primary suspect in a group of persons under surveillance. Find statewide conventional and trunking Indiana police frequencies here at Police-Frequencies. Marion County/Indianapolis Marion County Sheriff Indianapolis Department of Public Safety Indianapolis Metropolitan Police - Tactical Fire/EMS/Homeland Security American Indianapolis Police Unit Numbering I. 10 Codes used by law enforcement and emergancy services through radio communications. Indiana police frequencies sorted by county. i8oc 6rmhv imf i5ne jqyivy vdtpus s9e9f cwtfc ufrf fenz