Basic Codes
On Duty
Emergency
Investigation
Advanced Codes
100

This code means "acknowledgment."

10-4

100

You'd use this code to say you're "In Service."

10-8

100
An urgent request when officer is in trouble and immediate help is needed

10-24

100

If you've made an arrest, this ten-code means you have someone in custody.

10-15

100

This is used by officers who are actively chasing a suspect who is attempting to flee.

10-31 (In pursuit)

200
If you are "out of Service," you would say this code

10-7

200

Use this code when you need some to "Repeat/Condition Bad."

10-9

200

When an officer asks for backup, this is the code they'll give

10-94

200

This code is used when dispatch is asked to run a full check on someone.

10-27

200

Serving a judicial order to apprehend someone is reported with this ten-code

10-49 (serving warrant)

300
When dispatch wants your location, they ask for this code.

10-20

300

A Traffic Stop is indicated by this code.

10-50

300

This code takes priority, cutting off regular radio traffic in critical situation

10-33

300

When verifying the ownership or details of a vehicle, this is the code.

10-28

300
When a situation requires the expertise of explosives specialists, this code is requested.

10-63 (Need Bomb Squad)

400

This code means "Receiving Well."

10-2

400

This code is used when you are "Enroute."

10-51

400

Medical transport is reqiured when this ten-code is used

10-71

400

A response from dispatch that a subject or vehicle is wanted would come from this code.

10-29

400

A restricted channel for tactical operations is identified by this ten-code

10-91 (Tactical Frequency)

500
Opposite to 10-2, this code means "Receiving Poorly."

10-1

500

You arrive at your destination. This is the code to report

10-97

500

When a disabled vehicle needs towing, this code is sent.

10-33

500

This ten-code warns that sensitive details should not be shared publicly.

10-35

500

An officer would use this ten-code when beginning an inquiry or looking deeper into a situation at a scene

10-17 (Conduct investigation)

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