Police Department Partially Encrypted

Los Altos Police

Santa Clara, California

What you can do right now

Encryption Details

Encryption Type P25 AES-256
Scope All Operations except dispatch
Technical Details P25 AES-256

Verified Talkgroup Data

Verified Mar 6, 2026 Moderate confidence
11 Total Talkgroups
4 Encrypted
7 Unencrypted
36% Encrypted
Radio System: TelePath Corporation (Connect Plus), California Radio Interoperable System (CRIS)
View 4 talkgroups
DEC Alpha Tag Description Status
800 SO BLK Black - Central Los Angeles (15) Encrypted
819 SO PNK Pink - West Los Angeles (79) Encrypted
838 SO YEL Yellow - East Los Angeles (82) Encrypted
833 SO WHT White - South Los Angeles (77) Encrypted

Verification Status

We do have per-talkgroup data for Los Altos Police 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 Los Altos Police 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

Santa Clara County, California runs TelePath Corporation (Connect Plus) / California Radio Interoperable System (CRIS) as shared infrastructure: 2 agencies, Los Altos Police included, ride the same system and inherit the same encryption status rather than each having made a separate call.

Santa Clara County Context

Santa Clara County is a mixed picture: 11 of 22 agencies we track here are fully encrypted (50%), which means some neighboring departments are still audible on a scanner.

What This Means

Our records list a mix here: some talkgroups encrypted, others not. The listing is unverified, so confirm what is audible at RadioReference.

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

Frequently Asked Questions

Is Los Altos Police radio encrypted?

Our database lists Los Altos Police as using P25 AES-256 encryption, though this listing is unverified. Our records list a mix here: some talkgroups encrypted, others not. The listing is unverified, so confirm what is audible at RadioReference.

Can I listen to Los Altos Police on a police scanner?

Possibly. Our database lists Los Altos Police 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 Los Altos Police encrypt their radio?

The standard justification nationwide is officer safety and operational security, regardless of whether a documented local incident ever required it. The tradeoff that follows is consistent too: public oversight drops, and reporters lose the ability to track police department response as it happens.

Can Santa Clara County reverse the encryption decision?

Nothing technical prevents it. Los Altos Police operates encrypted because someone decided it should, and decisions of that kind get revisited when councils hear sustained, organised pressure rather than isolated complaints.

What can I do about Los Altos Police encryption?

Put the question to whoever signs off on Los Altos Police's radio budget: why full encryption rather than a delayed feed or tactical-only channels? File for the recordings and the decision documents alongside it, and link up with neighbours and local reporters in Santa Clara County so the ask arrives as a group rather than a one-off.

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