South Dakota Vehicle Searches: One Statutory No-Search Rule, and It Protects the Medical Cannabis Card Rather Than the Cannabis

The state's only affirmative search protection came in with Initiated Measure No. 26, approved on 3 November 2020 and effective 1 July 2021. SDCL 34-20G-14 provides that possession of, or application for, a registry identification card does not constitute probable cause or reasonable suspicion, nor may it be used to support a search of the person or property of the person possessing or applying for the card, or otherwise subject that person or property to inspection by any governmental agency. Read what it names. The trigger it neutralises is the card and the application, not the odour of cannabis, not visible plant material, and not an admission of use. Handing an officer a South Dakota registry card at a traffic stop cannot be the reason for the search that follows, and neither can the Department's record that you applied for one.

The surrounding sections show how narrow that is by contrast. SDCL 34-20G-2 gives a cardholder immunity from arrest, prosecution, penalty or denial of a right or privilege for the medical use of cannabis in accordance with the chapter, provided the cardholder does not hold more than the allowable amount and any plant is in an enclosed locked facility or in transit. SDCL 34-20G-4 creates a rebuttable presumption that a qualifying patient or designated caregiver holding a card and no more than the allowable amount is engaged in medical use, rebuttable by evidence that the conduct was not for treating a debilitating condition. SDCL 34-20G-13 bars seizure or forfeiture of cannabis, product, paraphernalia or other property possessed, owned or used in connection with lawful medical use, while expressly preserving seizure of amounts over the limit or on a basis unrelated to lawful cannabis. Those are immunity and forfeiture rules, not search rules, and only 34-20G-14 speaks to the search itself.

South Dakota also has no adult-use legalisation, so the legalisation-act search clauses that other states rely on do not exist here. Possession outside the medical scheme remains an offense at every quantity under SDCL 22-42-6: a Class 1 misdemeanor for two ounces or less, a Class 6 felony above two ounces to under half a pound, rising to a Class 3 felony above ten pounds, with a civil penalty of up to ten thousand dollars available in addition to the criminal one. SDCL 34-20G-18 confirms that the chapter authorises nothing for a person operating, navigating or being in actual physical control of a motor vehicle while under the influence of cannabis, and nothing for smoking or vaping on public transportation or in a public place. There is no sealed-container or trunk-transport rule in South Dakota, because there is nothing lawful outside the medical scheme to write one about.

On the procedural side, chapter 23A-35 is the whole of South Dakota's statutory search law and it is warrant law. SDCL 23A-35-4 requires a warrant to issue only on an affidavit establishing grounds, identifying the property to be seized and naming or describing the person or place to be searched, to be executed within a period not exceeding ten days and served in the daytime unless the magistrate authorises night execution for reasonable cause. SDCL 23A-35-9 sets the no-knock standard. SDCL 23A-35-10 requires a receipt and a copy of the warrant to be given to the person from whom property is taken and an inventory filed with the return. What the chapter never mentions is consent. There is no South Dakota statute defining voluntary consent, requiring an officer to tell a driver that consent may be refused, requiring written or recorded consent, or requiring an agency to log consent requests and outcomes. Several states have adopted one or more of those duties; South Dakota has adopted none of them.

The same is true of pretext. South Dakota has enacted no pretextual-stop reform, no statutory limit on the length of a traffic stop, and no provision on canine deployment during a stop. Nothing in the motor vehicle title bars a search based on an equipment violation. What the code does contain, and drivers should know, is broad seizure authority for the vehicle itself: SDCL 32-33-1 empowers a county highway superintendent to stop vehicles and take a nonconforming vehicle before a court, which shall impound the vehicle and not permit it to be driven until it conforms to the licensing and registration laws and to the lighting, loading and size provisions of the title, and SDCL 32-33-16 gives the same impound power where the Division of Highway Patrol has instituted a prosecution.

The remedy for an unlawful search is judicial, not statutory. SDCL 23A-35-11 allows a person aggrieved by an unlawful seizure to move the circuit court for return of the property, and provides that the court shall treat the motion as a motion to suppress evidence. SDCL 23A-35-12 supplies the parallel motion to suppress in the trial court. South Dakota creates no damages action, fee-shifting provision or administrative complaint route for a search conducted without valid consent.

Because the state regulates warrants rather than consent, the consequence of an improper vehicle search is exclusion rather than a penalty on the officer. SDCL 23A-35-11 lets a person aggrieved by an unlawful search and seizure move the circuit court for the return of the property, and the court shall receive evidence on any issue of fact necessary to the decision and shall treat the motion as a motion to suppress. SDCL 23A-35-12 provides the motion to suppress evidence in the trial court. Neither section creates damages, costs or an agency complaint.

On the other side of the ledger, evidence found during a search leads to the ordinary offense grades: possession of two ounces of marijuana or less is a Class 1 misdemeanor under SDCL 22-42-6, punishable under SDCL 22-6-2 by up to one year in a county jail or a two thousand dollar fine, with felony grades above that and an additional civil penalty of up to ten thousand dollars available on conviction. A cardholder who stays inside SDCL 34-20G-2 is not subject to arrest, prosecution or penalty for the medical use itself, and under SDCL 34-20G-13 the cannabis and paraphernalia may not be seized or forfeited, though anything above the allowable amount can be.

Resisting a search physically is a separate offense: SDCL 22-11-6 requires violence, force, physical interference or an obstacle and is a Class 1 misdemeanor, and SDCL 22-11-5 removes the defence that the officer's act was itself unlawful where the officer was acting under color of authority with reasonable force.