Upgraded Setup (as of 05/20/2025):

- Sebastopol Police 1: 460.125 MHz (PL 82.5)

- Audio Filter for Reduced Noise
 

Common Law Enforcement 10-Codes and Signal Codes

These standardized radio codes are commonly used by public safety agencies to communicate efficiently over radio channels:

Priority Codes

• Code 1 – Respond at your convenience

• Code 2 – Priority response (no lights or siren)

• Code 3 – Emergency response (lights and siren)

• Code 4 – No further assistance needed

• Code 5 – Stakeout

• Code 6 – Officer needs assistance / Backup requested

• Code 7 – Mealtime

• Code 10 – Bomb threat

• Code 20 – Emergency cover requested (local units only)

• Code 30 – Officer needs immediate help (emergency, all units respond)

• Code 33 – Radio channel restricted to emergency traffic only

10-Codes

• 10-1 – Signal weak / Receiving poorly

• 10-2 – Signal strong / Receiving clearly

• 10-4 – Acknowledged / Message received

• 10-5 – Relay message

• 10-6 – Busy

• 10-7 – Out of service

• 10-8 – In service / Available

• 10-9 – Repeat message

• 10-10 – Off duty / Home

• 10-13 – Weather or road conditions

• 10-14 – Escort or convoy

• 10-15 – Prisoner in custody

• 10-16 – Pick up

• 10-19 – Return to station

• 10-20 – Location

• 10-21 – Call by telephone

• 10-22 – Disregard / Cancel last assignment

• 10-23 – Stand by

• 10-27 – Driver license check

• 10-28 – Vehicle registration check

• 10-29 – Check for wants or warrants

• 10-30 – Subject wanted

  • 10-30F – Felony warrant

  • 10-30M – Misdemeanor warrant

• 10-33 – Alarm activation

• 10-34 – Open door or window

• 10-49 – Proceed to / En route

• 10-50 – Request to obtain a report

• 10-54 – Possible dead body

• 10-55 – Coroner case

• 10-56 – Suicide

  • 10-56A – Attempted suicide

  • 10-56T – Suicide threats

• 10-57 – Shots fired

• 10-62 – Meet with citizen

• 10-64 – Citizen assist

• 10-65 – Missing person

• 10-66 – Suspicious person

• 10-70 – Prowler

• 10-73 – Signal check / How do you receive?

• 10-87 – Meet with officer

• 10-91 – Animal-related call

• 10-97 – Arrived on scene

• 10-98 – Assignment complete

11-Codes (California Specific)

• 11-24 – Abandoned vehicle

• 11-25 – Traffic hazard / Disabled vehicle

• 11-54 – Suspicious vehicle

• 11-79 – Traffic accident; ambulance dispatched

• 11-80 – Traffic accident; major injuries

• 11-81 – Traffic accident; minor injuries

• 11-82 – Traffic accident; property damage only

• 11-83 – Traffic accident; unknown injuries

• 11-85 – Request tow truck

Phonetic Alphabet (NATO/Police Standard)

Used for clear communication of letters over the radio:

• A – Adam

• B – Boy

• C – Charles

• D – David

• E – Edward

• F – Frank

• G – George

• H – Henry

• I – Ida

• J – John

• K – King

• L – Lincoln

• M – Mary

• N – Nora

• O – Ocean

• P – Paul

• Q – Queen

• R – Robert

• S – Sam

• T – Tom

• U – Union

• V – Victor

• W – William

• X – X-ray

• Y – Yellow

• Z – Zebra

Common Vehicle Code (VC) Violations

• 10851 VC – Stolen Vehicle

• 12500 VC – Unlicensed Driver

• 14601.1(a) VC – Driving with Suspended License

• 20001 VC – Felony Hit and Run

• 20002 VC – Misdemeanor Hit and Run

• 4000(a)(1) VC – Expired Vehicle Registration

• 22350 VC – Speeding (Unsafe Speed for Conditions)

• 23103 VC – Reckless Driving

• 23152 VC – Driving Under the Influence (DUI)

Common Penal Code (PC) Violations

• 187 PC – Homicide

• 207 PC – Kidnapping

• 211 PC – Robbery

• 240 PC – Assault

• 242 PC – Battery

• 243 PC – Battery on a Peace Officer

• 245 PC – Assault with a Deadly Weapon

• 246 PC – Shooting into an Inhabited Dwelling

• 261 PC – Rape

• 273.5 PC – Domestic Violence

• 288 PC – Lewd or Lascivious Acts with a Child

• 314 PC – Indecent Exposure

• 415 PC – Disturbance

• 459 PC – Burglary

• 487 PC – Grand Theft

• 488 PC – Petty Theft

• 530.5 PC – Identity Theft

• 647(b) PC – Prostitution

• 647(f) PC – Public Intoxication

• 12700 PC – Possession or Use of Illegal Fireworks

Common Health & Safety (H&S) Code Violations

• 11350 H&S – Possession of Narcotics (e.g., cocaine, heroin)

• 11364 H&S – Possession of Drug Paraphernalia

• 11377(a) H&S – Possession of Controlled Substance (e.g., methamphetamine)

• 11550 H&S – Under the Influence of a Controlled Substance

Common Welfare & Institutions (W&I) Codes

• 5150 W&I – Mentally Disordered Person / Involuntary Hold

• 300 W&I – Juvenile Protective Custody

• 777 W&I – Juvenile Probation Violation

Common Law Enforcement Abbreviations & Codes

This list outlines frequently used abbreviations and terminology heard during law enforcement and public safety radio communications:

• A/F – Across From

• APS – Aging & Adult Services

• ATC – Attempt to Contact

• ATL – Attempt to Locate

• C/B – Call Back

• CK – Check

• CPS – Child Protective Services

• DOB – Date of Birth

• DOT – Direction of Travel

• DRI – Domestic Related Incident

• ETA – Estimated Time of Arrival

• GOA – Gone on Arrival

• HBD – Has Been Drinking (Police Department context)

• IFO – In Front Of

• JUV – Juvenile

• JEO – Just East Of

• JNO – Just North Of

• JSO – Just South Of

• LSW – Last Seen Wearing

• NFD – No Further Description

• NFI – No Further Information

• RESP – Responsible

• RES – Resident

• RO – Registered Owner

• RP – Reporting Party

• RTI – Refused to Identify

• SUBJ – Subject

• SUSP – Suspect

• TRO – Temporary Restraining Order

• UNK – Unknown

• UTL – Unable to Locate

• VEH – Vehicle

• VIC – Victim

• X – Female

• YO – Years Old

For best understanding while monitoring radio traffic, familiarize yourself with these commonly used terms.

Law Enforcement Systems Overview

RIMS (Records Information Management System)
Developed by Sun Ridge Systems, Inc., RIMS is a comprehensive public safety software suite designed for law enforcement and public safety agencies. It integrates a wide range of operational functions—including dispatch, records, reporting, and field operations—into a single, user-friendly platform.

CriMNet (Criminal Justice Information Integration Network)
CriMNet is Minnesota's statewide initiative to integrate criminal justice information systems across jurisdictions, including law enforcement, courts, corrections, and other public safety agencies. The primary goal is to provide authorized personnel with efficient access to up-to-date criminal history and case information, enhancing both decision-making and public safety.

IJS (Integrated Justice System)
An Integrated Justice System refers to a coordinated framework that connects key components of the criminal justice process—such as law enforcement, courts, corrections, and prosecution—via shared information systems and standardized procedures. IJS platforms aim to improve efficiency, accuracy, and inter-agency collaboration.

Please be aware that this feed is intended solely for informational and entertainment purposes. The utilization of any information obtained from this feed for engaging in criminal activities or evading law enforcement is strictly prohibited. Exercise responsibility and refrain from obstructing the duties of public safety officials.