Study reference
Law enforcement 10-codes & phonetic alphabet.
Tap a card to flip it. Copper marks the daily/common study set;
indigo and forest green mark the rest of the local reference sheet.
Common / daily study
Standard reference
Standard reference
10-Codes
Additional Codes
Phonetic Alphabet
Radio reference
10-Codes
Meanings can vary between agencies. These definitions follow the supplied
local reference sheet rather than a generic nationwide list.
Flip all
10-0
CAUTION
10-0
10-1
Unable to copy/change location
10-1
10-2
Signals Good
10-2
10-3
Stop Transmitting
10-3
10-4
Acknowledgement
10-4
10-5
Relay
10-5
10-6
Busy-Standby unless urgent.
10-6
10-7
Out of Service
10-7
10-8
In Service
10-8
10-9
Repeat
10-9
10-10
Fight In Progress
10-10
10-11
Dog Case
10-11
10-12
Stand by (STOP)
10-12
10-13
Weather and Road Report
10-13
10-14
Report of Prowler
10-14
10-15
Civil Disturbance
10-15
10-16
Domestic Trouble
10-16
10-17
Meet Complainant
10-17
10-18
Complete assignment quickly
10-18
10-19
Return to ______
10-19
10-20
Location
10-20
10-21
Call ______ by Phone
10-21
10-22
Disregard
10-22
10-23
Arrive at Scene
10-23
10-24
Assignment completed
10-24
10-25
Report in person to (meet) ______
10-25
10-26
Detaining subject - expedite
10-26
10-27
Drivers license information
10-27
10-28
Vehicle registration information
10-28
10-29
Check NCIC/CWIS for wants/stolen
10-29
10-30
Illegal use of radio
10-30
10-31
Crime in progress
10-31
10-32
Man with gun
10-32
10-33
EMERGENCY
10-33
10-34
Riot
10-34
10-35
Major crime alert
10-35
10-36
Correct time
10-36
10-37
Investigate suspicious vehicle
10-37
10-38
Stopping suspicious vehicle
10-38
10-39
Traffic stop
10-39
10-40
Silent run / no lights or siren
10-40
10-41
Beginning tour of duty
10-41
10-42
Ending tour of duty
10-42
10-43
Information (asking or supplying)
10-43
10-44
Request permission to leave patrol ______ for ______
10-44
10-45
Animal carcass in ______ lane at ______
10-45
10-46
Assist motorist
10-46
10-47
Emergency road repairs needed
10-47
10-48
Traffic standard needs repair
10-48
10-49
Traffic light out
10-49
10-50
Accident / F,I,P (Fatality, Injury, Property)
10-50
10-51
Wrecker needed
10-51
10-52
Ambulance needed
10-52
10-53
Road blocked
10-53
10-54
Livestock on highway
10-54
10-55
Intoxicated driver
10-55
10-56
Intoxicated pedestrian
10-56
10-57
Hit and Run / F,I,P
10-57
10-58
Direct traffic
10-58
10-59
Convoy and/or escort
10-59
10-60
Squad in vicinity
10-60
10-61
Personnel in area
10-61
10-62
Reply to message
10-62
10-63
Prepare to make written copy
10-63
10-64
Message for local delivery
10-64
10-65
Net message assignment
10-65
10-66
Message cancellation
10-66
10-67
Clear to read net message
10-67
10-68
Dispatch information
10-68
10-69
Message received
10-69
10-70
Fire Alarm
10-70
10-71
Advise nature of fire
10-71
10-72
Report progress on fire
10-72
10-73
Smoke report
10-73
10-74
Negative
10-74
10-75
In Contact with
10-75
10-76
Enroute
10-76
10-77
Estimated Time of Arrival
10-77
10-78
Need Assistance
10-78
10-79
Notify coroner
10-79
10-80
Pick up prisoner at ______
10-80
10-81
Pick up papers at ______
10-81
10-82
Reserve lodging
10-82
10-83
We have prisoner in custody
10-83
10-84
If meeting ______ advise ETA
10-84
10-85
Will be late
10-85
10-86
Message delivered
10-86
10-87
Pick up checks for distribution
10-87
10-88
Advise present telephone # of
10-88
10-89
Juvenile trouble
10-89
10-90
Bank alarm
10-90
10-91
Unnecessary use of radio
10-91
10-92
Officer now at home
10-92
10-93
Blockade
10-93
10-94
Drag racing
10-94
10-95
Surveillance (Stake out)
10-95
10-96
Mental subject
10-96
10-97
Narcotics
10-97
10-98
Prison or jail break
10-98
10-99
RECORDS INDICATE WANTED
10-99
Additional reference
Additional numbered codes
Extra dispatch/reference codes printed or handwritten on the supplied sheet.
Flip all
101
Lunch at ______
101
103
Dead Person (DOA)
103
104
Officials or visitor present
104
109
Bar Check
109
111
Ambulance transfer
111
112
Bomb Threat
112
120
COVID
120
Daily study
Law-enforcement phonetic alphabet
Tap a letter to reveal its phonetic word.
Flip all
A
Adam
A
B
Boy
B
C
Charles
C
D
David
D
E
Edward
E
F
Frank
F
G
George
G
H
Henry
H
I
Ida
I
J
John
J
K
King
K
L
Lincoln
L
M
Mary
M
N
Nora
N
O
Ocean
O
P
Paul
P
Q
Queen
Q
R
Robert
R
S
Sam
S
T
Tom
T
U
Union
U
V
Victor
V
W
William
W
X
X-Ray
X
Y
Young
Y
Z
Zebra
Z
Common codes only
Memory board
Every pair has one code card and one meaning card. Pick what you believe matches;
if you chase the wrong meaning, the pair pauses so you can read it, then flips back for another try.
Pairs this round
8 pairs
12 pairs
18 pairs
All 37 common pairs
New board
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