TEN CODES                                                                    STATUS CODES
10-0  Caution                       10-38 Stopping suspicious vehicle                    Code 2 Urgent - no light or sirens
10-1  Unable to copy                10-41 Beginning tour of duty                         Code 3 Use lights and siren
10-2  Signal good                   10-42 Ending tour of duty                            Code 4 No further assistance needed
10-3  Stop transmitting             10-43 Information                                    Code 5 Stakeout
10-4  Acknowledgement               10-50 Accident                                       Code 6 Stay out of area
10-5  Relay                         10-52 Ambulance needed                               Code 7 Meal break
10-6  Busy                          10-53 Spike Strips                                Code 8 Restroom break
10-7  Out of service                10-55 Suspected DUI                                  Code 37 Subject/Property wanted
10-8  In service                    10-56 Intoxicated pedestrian
10-9  Repeat                        10-57 Hit and run
10-10 Fight in progress             10-59 Convoy or escort
10-13 Officer Down                  10-74 Negative
10-16 Domestic disturbance          10-75 In contact with
10-18 Road Blocked At               10-76 En route
10-19 Return to                     10-77 ETA (estimated time of arrival)
10-20 Location                      10-78 Need assistance
10-22 Disregard                     10-80 Chase in progress
10-23 Arrived at scene              10-90 Bank alarm
10-26 Detaining subject             10-91 Pick up prisoner/subject
10-27 Drivers license info          10-92 Improperly parked vehicle
10-28 Vehicle registration info     10-93 Prisoner Transport "Need 10-93 for one (name) transfer to Bolingbroke Penitentiary."
10-31 Crime in progress             10-94 Street racing
10-32 Shots Fired                   10-95 Prisoner/subject in custody
10-33 Emergency                     10-98 Prison/jail break
10-37 Suspicious vehicle            10-99 Wanted/stolen indicated

Divisions of Law Enforcement are designated by division numbers.
01-LSPD
02-BCSO
03-FIB

RADIO CALLSIGNS

From the perspective of control, each unit is represented by an LSPD-specific callsign. Typically, a callsign is made up of three elements: the division number, the unit type and the "beat" number. For example, division 1 is LSPD, an "A" is patrol unit with two officers and their patrol vehicle number can be a number like 12. Such a unit would identify themselves as 1-A-12 (or 1-Adam-12, using the LSPD phonetic alphabet). Patrol Vehicle numbers will be assigned to you by a superior officer. There are several patrol types:

A: Two officer patrol unit ("Adam")
D: SWAT ("David")
L: One officer patrol unit.
M: Motorcycle unit
C or "cycle": Bicycle unit

LSPD Phonetic alphabet
A=Adam       N=Nora
B=Boy        O=Ocean
C=Charles    P=Paul
C=David      Q=Queen
E=Edward     R=Robert
F=Frank      S=Sam
G=George     T=Tom
H=Henry      U=Union
I=Ida        V=Victor
J=John       W=William
K=King       X=Xray
L=Lincoln    Y=Young
M=Mary       Z=Zebra