Other Agency Partially Encrypted

L.A. IMPACT Unit

Los Angeles, California

What you can do right now

Encryption Details

Encryption Type P25 DES-OFB
Scope Some talkgroups encrypted (48.9% per RadioReference data); others remain in the clear.
Technical Details P25 DES-OFB

Verified Talkgroup Data

Verified Mar 6, 2026 High confidence
44 Total Talkgroups
19 Encrypted
5 Mixed
20 Unencrypted
49% Encrypted
Radio System: Norwalk City Services, United States Department of Defense (14C), Los Angeles Regional Interoperable Communications System (LA-RICS), Los Angeles Countywide Integrated Radio System (CWIRS), California Department of Corrections and Rehabilitation, Phillips 66 Refineries, Chevron El Segundo Refinery P25, California Radio Interoperable System (CRIS)
View 24 talkgroups
DEC Alpha Tag Description Status
24181 NASL MP Dispatch Police Dispatch (Mobile Units Encrypted) Mixed
2219 LASD TRNG TAS Training Bureau - Tactics and Survival Unit Encrypted
2100 LASD SAR MOUNT Search And Rescue - Mounted Unit Encrypted
2257 LASD LTAC CCS L-TAC Community College Bureau Encrypted
2258 LASD METRO CCS Metro - Community College Bureau Supplemental Tac Encrypted
2025 LASD MCU 1 Mobile Command Unit 1 Encrypted
2026 LASD MCU 2 Mobile Command Unit 2 Encrypted
2055 LASD DISP SUD Special Units Dispatch Encrypted
2098 LASD ASAP 1 Advanced Surveillance and Protection Unit Encrypted
2276 LASD MOTORS TAC Motor Unit Encrypted
2279 LASD SOU 1 Security Operations Unit 1 Encrypted
2280 LASD SOU 2 Security Operations Unit 2 Encrypted
1046 LACOFD COMM Field Communication Unit Encrypted
2071 LASD WTU 1 Weapons Training Unit 1 Encrypted
2273 LASD RTU 1 Recruit Training Unit 1 Encrypted
2507 LASD OSS GSU Operation Safe Streets Gangs Surveillance Unit Encrypted
2072 LASD WTU 2 Weapons Training Unit 2 Encrypted
2270 LASD TRNG AOT Training - Advanced Officer Training Unit Encrypted
2274 LASD RTU 2 Recruit Training Unit 2 Encrypted
11823 SSU TAC 1 Special Services Unit - Tac 1 Mixed
11828 SSU TAC 2 Special Services Unit - Tac 2 Mixed
1130 CAL ISU 2 Investigative Services Unit 2 Encrypted
36011 ALKY Alkylation Unit Mixed
36014 FCCARU Fluid Catalytic Cracking Unit Mixed

Verification Status

We do have per-talkgroup data for L.A. IMPACT Unit from the RadioReference API, and used it to set the encryption scope shown above — but no additional human-reviewed source (a live feed check or a dated news account) has been recorded for this record, so treat it as a data-quality correction rather than an independently confirmed verification. Check the live RadioReference database directly for current status.

If you monitor L.A. IMPACT Unit directly or have more current information, the fastest way to fix this is to update the RadioReference Wiki entry — our data pulls from there and from the RadioReference API on a regular refresh cycle.

Shared Radio System

L.A. IMPACT Unit isn't on a radio system of its own: Norwalk City Services / United States Department of Defense (14C) / Los Angeles Regional Interoperable Communications System (LA-RICS) / Los Angeles Countywide Integrated Radio System (CWIRS) / California Department of Corrections and Rehabilitation / Phillips 66 Refineries / Chevron El Segundo Refinery P25 / California Radio Interoperable System (CRIS) also carries 0 other agencies in Los Angeles County, California. Whatever encryption status applies here was set once, for the whole system, not agency by agency.

Los Angeles County Context

Los Angeles County is a mixed picture: 22 of 46 agencies we track here are fully encrypted (48%), which means some neighboring departments are still audible on a scanner.

What This Means

This agency is listed as encrypting some communications while leaving others open. The per-channel breakdown is unverified — check RadioReference for current status.

See encryption status nationwide Interactive map showing which US police departments have encrypted their radios. Open the encryption map →

Frequently Asked Questions

Is L.A. IMPACT Unit radio encrypted?

L.A. IMPACT Unit is listed in our records with P25 DES-OFB encryption — a listing we haven't yet verified against live talkgroup data. This agency is listed as encrypting some communications while leaving others open. The per-channel breakdown is unverified — check RadioReference for current status.

Can I listen to L.A. IMPACT Unit on a police scanner?

Possibly. Our database lists L.A. IMPACT Unit as encrypting some of its talkgroups while leaving others open, which would leave some channels accessible. The listing is unverified — check RadioReference for specific talkgroup status.

Why do agencies like L.A. IMPACT Unit encrypt their radio?

Ask why, and the answer is usually officer safety, sometimes operational security. What is harder to obtain is any documented case in Los Angeles County where an open channel caused harm. The costs need no such documentation: reporting on other agency response slows down, and mutual-aid coordination gets more awkward, immediately.

Can Los Angeles County reverse the encryption decision?

Yes. Encryption is a policy choice made by department leadership or elected officials, not a technical requirement, so it can be reversed the same way. Public pressure, city council advocacy, and organized local coalitions have reversed encryption decisions elsewhere.

What can I do about L.A. IMPACT Unit encryption?

Ask for the paperwork first — the policy that authorised encryption for L.A. IMPACT Unit, and the recordings themselves — because a specific request is harder to wave away than a general complaint. Then take what you learn to a council meeting, and bring others from Los Angeles County with you.

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