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North Dakota


True North Polygraph
PO Box 14771
Grand Forks, North Dakota 58208

Contact: Derik Zimmel
919-886-7659

APA and AAPP member. APA Certificate of Advanced and Specialized Training. Fully licensed and insured. Please visit my website to learn more about me and the type of services I offer. Thank you.

E-mail: derik@truenorthpolygraph.com

Website: http://www.truenorthpolygraph.com

* Utilizes computerized polygraph instrument.
* Sex offender testing certified.


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