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DER & Associates
Professional Investigations PO Box 304 Waverly, IA 50677 Ph: (319) 352-9253 Toll-free: 1-800-413-6551 Fax: (319) 352-9253 Licensed Throughout Iowa Credit Card Payments Accepted |
Welcome to DER & AssociatesWelcome to DER & Associates Professional Investigations, a Waverly, Iowa private investigator firm also serving the cities of Waterloo, Decorah, Mason City and Dubuque.
Firm president and owner Darwin E Rittgers is a 20-year veteran of the Waverly police force who has been in business as a private
investigator for over 11 years. He is licensed throughout the state of Iowa, and only hires other licensed private investigators to
assist him in his practice.
As a former police officer and detective, Darwin E. Rittgers knows how important patience, commitment, and persistence are to successful investigative work. He has benefited many times from the skills and training he received as a police officer by pursuing justice in the most efficient manner while getting the results needed to close the case.
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