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Welcome!

All Star Investigations and Great Plains Credibility Services LLC

have partnered together to provide you with the most complete investigative services. 

Whether its private investigations, surveillance, polygraph examinations, or process service. 

Our investigators have a combined 85 years law enforcement and investigative experience. 

We are properly bonded and insured.

Please contact us for a free consultation.

(605) 610-7750

We share an office with Phil Toft, an experienced and

qualified polygraph examiner. If you want a polygraph or

have questions you can contact Phil at:

Great Plains Credibility Services

(605) 359-5419

Address

300 N. Dakota Ave.

Suite 220

Sioux Falls, SD 57104

Contact

(605) 610-7750

Office Hours

**We are in and out of the office on cases, please call ahead to schedule time to meet***

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