South Dakota Dash Cam Mounting: Dangling Is a Secondary-Enforcement Petty Offense, Sticking It to the Glass Is Not

Start with the attachment method, because South Dakota's two rules are written around it. A camera suction-cupped or adhered flat to the inside of the windshield is nontransparent material upon the front windshield for the purposes of SDCL 32-15-5. That section is a petty offense, but it closes with the words unless the same shall not obstruct the driver's clear view of the highway or any intersecting highway. A small body tucked behind or beside the rear-view mirror, where the mirror already blocks the same sightline, does not obstruct a view that was not there to begin with. A camera parked in the middle of the glass at eye level does.

A camera hung from the mirror stem on a strap or a lanyard is a different section. SDCL 32-15-6 makes it a petty offense to drive with any object or gadget dangling between the view of the driver and the windshield of the vehicle, and unlike 32-15-5 it has no does-not-obstruct escape clause: dangling is the offense. What it does have is the sentence added by SL 2004, ch 214, that enforcement of this section by state or local law enforcement agencies shall be accomplished as a secondary enforcement. South Dakota uses that same construction for the seat-belt law at SDCL 32-38-5, which reads as a secondary action, so the drafting is deliberate and familiar. A South Dakota officer cannot pull you over because a camera is swinging from your mirror; the citation can only ride along with a stop made for something else.

The practical advice that follows is the opposite of the usual folk wisdom. In South Dakota, mounting the camera rigidly against the glass moves it out of the secondary-enforcement section and into a primary one, and hanging it moves it into a section that cannot be the reason for a stop but has no obstruction defence. The safe answer sits in the overlap: rigid, high, and immediately behind the mirror head.

Two neighbouring provisions bound the placement. SDCL 32-15-2.9 forbids extending any windshield film downward beyond the AS-1 line or below the lowest point of the sun visor, which is South Dakota's only stated windshield boundary line and a sensible ceiling reference for a camera body. SDCL 32-15-8 requires a mirror positioned to reflect to the driver a view of the highway for at least two hundred feet to the rear, so a rear-window or cabin-facing camera must not be the thing that costs you that two hundred feet. SDCL 32-15-2.3 separately forbids glazing cracked, broken, shattered or distorted to the extent that it significantly impairs the driver's vision, which reaches a suction cup that has crazed the glass.

A screen is not separately regulated. SDCL 32-15-9 makes it a petty offense to drive a vehicle equipped with any television viewer, screen, or other means of visually receiving a television broadcast located so that it is visible to the driver. That section is aimed at receiving a broadcast, so a dash camera's own live preview or playback panel does not fall inside its words. South Dakota has simply never legislated for in-car displays that are not receiving television, which is why the state has no navigation-display exemption of the kind other states had to write.

On audio, South Dakota is a one-party-consent state. SDCL 23A-35A-20 places a person present during a conversation who records it with the consent of a party to that conversation outside the Class 5 felony it creates, so a driver whose camera records the driver's own conversations is not exposed. SDCL 22-21-1 reaches only eavesdropping accomplished by trespass or by installing a recording device in a private place without the consent of the people entitled to privacy there, so it does not reach a camera you install in your own vehicle.

On admissibility, note what the Legislature did in 2025 and did not do. SDCL 32-32-17, added by SL 2025, ch 131, provides that a recording from a school bus external video system is discoverable and may be entered into evidence in any civil or criminal action. No parallel section exists for privately owned dash cameras, so their footage runs on the ordinary rules of evidence rather than on a statutory admissibility grant.

Both SDCL 32-15-5 and SDCL 32-15-6 are petty offenses, and in South Dakota a petty offense is not a crime. SDCL 22-6-7 provides that actions for violations of petty offenses are civil proceedings in which the state is the plaintiff, governed by chapter 23-1A. Under SDCL 23-1A-22 a prevailing state is granted a judgment of twenty-five dollars, which the trial court may reduce or eliminate in the interest of justice, and no award may be granted to a defendant. There is no jury trial for a petty offense, and the proceeding is otherwise governed by the rules of civil procedure.

A driver served with a petty offense complaint for a motor vehicle violation who holds a valid South Dakota driver license may give a written promise to appear under SDCL 23-1A-11, and intentionally breaking that promise is itself a Class 2 misdemeanor. Because SDCL 32-15-6 is enforceable only as a secondary enforcement, a dangling-camera citation issued at a stop that had no independent basis is vulnerable on that ground alone. Neither section carries licence points or a registration consequence.