The 10 Code
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10-0 Use Caution
10-3 Stop Transmitting
10-4 O.K.
10-6 Busy with Call
10-7 Out of service, (completely)
10-8 In service
10-9 Repeat last message
10-10 Out of service, Radio on
10-12 Visitors or officials present
10-13 Advise weather and road conditions
10-15 Prisoner in custody
10-16 Pick up prisoner
10-18 Complete present assignment ASAP/Get there ASAP
10-19 Return to office
10-20 Your location
10-24 Emergency at station/all units return
10-30 Does not conform to rules or regulations
10-32 Man with gun.
10-38 Your destination
10-100 Out using restroom
10-107 Suspicious person
10-108 Officer down or Officer needs assistance