Licensing
How South Dakota Licenses Private Investigators
South Dakota does not license private investigators at the state level. A Legislative Research Council issue memorandum lists it among the states with no statewide licensing law and notes that House Bill 1301, a 1995 attempt to license private detectives, was unsuccessful. No city licensing rule for investigators was confirmed for this page, so local business requirements are worth checking. Delator Group is a licensed Tennessee private investigation firm and holds its South Dakota casework to Tennessee's licensing standard.
With no state license to look up, the vetting falls to the client. Check that the business is registered and in good standing, ask for proof of liability insurance, and call references from attorneys or past clients. Get a written engagement that sets out the scope, the price and how evidence will be gathered before any work starts. A clear written plan protects the case as much as the client.
Courts
How South Dakota Courts Are Organized
South Dakota runs a unified court system. Its trial courts are the circuit courts, organized into seven judicial circuits that cover all 66 counties, with a clerk of courts in each county. Circuit courts hear civil and criminal cases, including divorce, custody and felonies. Magistrate courts work within the circuits and handle misdemeanors, preliminary hearings, small claims and civil cases of $12,000 or less. The Supreme Court in Pierre hears appeals from the circuit courts.
Communities
South Dakota Communities With a Private Investigator Page
Every South Dakota community over 3,000 residents, by population (U.S. Census Bureau, April 1, 2020 estimates base and July 1, 2024 estimates (Vintage 2024)).
| Community | County | Population (2024 est.) |
|---|---|---|
| Sioux Falls | Minnehaha County / Lincoln County | 209,289 |
| Rapid City | Pennington County | 79,894 |
| Aberdeen | Brown County | 27,919 |
| Brookings | Brookings County | 24,555 |
| Watertown | Codington County | 23,492 |
| Yankton | Yankton County | 15,670 |
| Mitchell | Davison County | 15,621 |
| Huron | Beadle County | 14,515 |
| Box Elder | Pennington County / Meade County | 13,887 |
| Spearfish | Lawrence County | 13,803 |
| Pierre | Hughes County | 13,788 |
| Vermillion | Clay County | 11,877 |
| Brandon | Minnehaha County | 10,837 |
| Harrisburg | Lincoln County | 10,203 |
| Tea | Lincoln County | 7,699 |
| Sturgis | Meade County | 7,014 |
| Madison | Lake County | 6,086 |
| Belle Fourche | Butte County | 5,855 |
| Big Sioux Township | Union County | 5,145 |
| Dell Rapids | Minnehaha County | 3,825 |
| Hot Springs | Fall River County | 3,608 |
| Hartford | Minnehaha County | 3,600 |
| Milbank | Grant County | 3,545 |
| Mobridge | Walworth County | 3,219 |
| Split Rock Township | Minnehaha County | 3,074 |
| North Sioux City | Union County | 3,059 |
| Lead | Lawrence County | 3,038 |
| Summerset | Meade County | 3,013 |
Delator Group South Dakota investigations overview
Neighboring states: Iowa · Minnesota · Montana · Nebraska · North Dakota · Wyoming
How we work
How Delator Group Works in South Dakota
Delator Group is a private investigation firm licensed in Tennessee and headquartered in Nashville. South Dakota does not issue a statewide private investigator license. Delator Group holds itself to Tennessee's licensing standard in South Dakota: written scope and price before work starts, supervised field work and reports built for court. The standard investigative rate is $100 per hour.
FAQ
Questions About Finding an Investigator in South Dakota
Which South Dakota communities have their own page?
Every incorporated South Dakota city, town or village with more than 3,000 residents, plus every township or town government of that size, has its own page here, 28 in all. Smaller places are covered by the nearest page and the statewide guide.
Does Delator Group work directly in South Dakota?
Yes. Delator Group is a licensed Tennessee private investigation firm and handles South Dakota investigations itself, with the scope and price in writing first. South Dakota does not issue a statewide private investigator license.
Does South Dakota license private investigators?
South Dakota has no state licensing law for private investigators, and bills to create one, such as House Bill 1301 in 1995, did not pass.
How do I vet an investigator in South Dakota?
Confirm the firm's business registration, insurance and references, ask about any local business requirements, and get a written engagement with scope and price.
Is South Dakota a one-party or two-party consent state?
South Dakota is generally a one-party consent state. Under SDCL 23A-35A-20, recording a conversation with an eavesdropping device is a felony only when no party to it has consented, so a participant can generally record. Hidden devices in private places raise separate issues under SDCL 22-21-1, and an attorney can confirm what applies to you.
