Police Scanner Laws in South Dakota (2026): Is It Legal?
Police scanners are completely legal in South Dakota. There are no restrictions on ownership, home use, or vehicle use — no license, no permit, no registration required.
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The law in South Dakota
South Dakota law permits the general public to own and use police scanners, including in vehicles, and no permit is required. However, the state does have scanner-specific statutes in SDCL chapter 23-4 ("Safeguard of Law Enforcement Radio Communications"). Under SDCL 23-4-2, a person convicted of a felony within the past ten years may not possess frequency modulation receiving equipment capable of receiving law enforcement communications (a misdemeanor). Under SDCL 23-4-7, any person who possesses a device actively receiving law enforcement or emergency dispatch audio or emergency dispatch text while committing a felony is guilty of a Class 1 misdemeanor. Verify the current statute text at sdlegislature.gov.
Enforcement reality
No enforcement history. Scanner use is fully protected.
Federal law applies in South Dakota as everywhere else: receiving unencrypted transmissions is always legal, while decrypting encrypted traffic, intercepting cellular calls and transmitting on public safety frequencies are federal crimes. What the ECPA actually says →
What you can monitor in South Dakota
With a police scanner in South Dakota, you can legally listen to any unencrypted public safety channel, including:
- Fire department dispatch and operations
- EMS and ambulance communications
- NOAA weather alerts and emergency broadcasts
- Unencrypted police channels (where available)
In practice, of the 83 talkgroups catalogued across South Dakota in our database, 80 are recorded as being in the clear and 1 as encrypted.
The radio systems most often recorded in South Dakota are South Dakota State Radio System.
Before buying a scanner, check whether your local agencies in South Dakota have encrypted their communications. If they have, your scanner won't be able to receive their transmissions regardless of legal status.
Check South Dakota agency encryption status →What's already encrypted in South Dakota
Scanner use being legal in South Dakota does not mean everything is listenable. Our database currently tracks 5 agencies in South Dakota that encrypt at least some radio traffic, across 3 counties. Of those, 2 encrypt all monitored channels rather than only a few.
The encryption most commonly recorded in South Dakota is P25 DES-OFB (5 agencies).
These records are unverified and may be out of date. Encryption status changes without notice — confirm the current status of any specific agency on RadioReference before relying on it.
Frequently asked questions
Is it legal to use a police scanner in South Dakota?
Yes. Police scanners are completely legal in South Dakota. There are no restrictions on ownership, home use, or vehicle use. You do not need a license, permit, or registration to own or use a scanner in South Dakota.
Can I use a scanner in my car in South Dakota?
Yes, you can use a police scanner in your vehicle in South Dakota without any permit or restriction. Scanner use while driving is fully legal.
What can I monitor with a scanner in South Dakota?
In South Dakota, you can legally monitor any unencrypted public safety frequency, including fire, EMS, weather alerts, and unencrypted police channels. Federal law (18 U.S.C. § 2511(2)(g)(ii)(II)) makes monitoring readily accessible radio lawful. You cannot decrypt encrypted channels, intercept cellular calls, or use scanner information to commit a crime. Check our South Dakota agency database to see which local departments are encrypted.
Sources
- SDCL § 23-4-7 (official S.D. Legislature site)
- SDCL § 23-4-2 — Possession by felon of police radio (Justia)
- SDCL § 23-4-7 full text (Casetext)
Statute citations verified 2026-08-01.
Legal disclaimer
This guide is for informational purposes only and does not constitute legal advice. Laws may change, and local regulations may apply. Consult a qualified attorney for advice specific to your situation.
Last updated: 2026-09-28