LEO Quick Reference

Law Enforcement Quick Reference

Signals

Signal 100: Hold all but emergency traffic
Signal 60: Drugs
Signal 11: Running radar
Code Zero: Game crash
Code 4: Under control
Code 5: Felony stop or high-risk stop

10 Codes

Patrol Essentials

Code	Meaning
10-0	Disappeared
10-1	Frequency change
10-3	Stop transmitting
10-4	Affirmative
10-5	AFK (less than 5 minutes)
10-6	Busy
10-7	Out of service
10-8	In service
10-9	Repeat
10-10	Fight in progress
10-11	Traffic stop
10-12	Active ride along
10-13	Shots fired
10-15	Subject in custody
10-16	Stolen vehicle
10-17	Suspicious person
10-20	Location
10-22	Disregard
10-23	Arrived on scene
10-25	Domestic dispute
10-26	ETA
10-27	License check
10-28	Plate check
10-29	Warrant check
10-30	Wanted person
10-31	Not wanted
10-32	Request backup
10-35	Wrap scene up
10-41	Begin tour of duty
10-42	End tour of duty
10-43	Information
10-49	Homicide
10-50	Vehicle accident
10-51	Request tow
10-52	Request EMS
10-53	Request Fire
10-55	Intoxicated driver
10-56	Intoxicated pedestrian
10-60	Armed with gun
10-61	Armed with knife
10-62	Kidnapping
10-64	Sexual assault
10-65	Escorting prisoner
10-66	Reckless driver
10-67	Fire
10-68	Armed robbery
10-70	Foot pursuit
10-71	Supervisor requested
10-73	Status check
10-80	Vehicle pursuit
10-99	Officer in distress
11-44	Person deceased

Response Codes

Response Reference

Code 1 – Routine, follow all traffic laws
Code 2 – Urgent, no lights or sirens unless needed
Code 3 – Emergency, lights and sirens active

Phonetic Alphabet

ICAO / NATO Phonetics

Letter	Word	Letter	Word
A	Alpha	N	November
B	Bravo	O	Oscar
C	Charlie	P	Papa
D	Delta	Q	Quebec
E	Echo	R	Romeo
F	Foxtrot	S	Sierra
G	Golf	T	Tango
H	Hotel	U	Uniform
I	India	V	Victor
J	Juliet	W	Whiskey
K	Kilo	X	X-ray
L	Lima	Y	Yankee
M	Mike	Z	Zulu