# Brenda Petty - Expert Handwriting Examiner > Brenda Petty is a Certified Questioned Document Examiner (CQDE) and Diplomate providing nationwide forensic document examination, handwriting analysis, and signature verification services. Based in Duncan, Oklahoma, she brings over 18 years of experience helping individuals, attorneys, and businesses resolve cases of forgery, identity theft, and disputed signatures. ## Key Services - **Signature Verification:** Ensuring authenticity for legal and personal documents (wills, deeds, contracts). - **Handwriting Analysis:** Identifying the authors of anonymous writings or "poison pen" letters. - **Document Examination:** Detecting alterations, forgeries, fraud, or tampered documents. - **Expert Witness Testimony:** Providing court-qualified expert testimony and comprehensive, illustrated forensic reports that often help settle disputes before trial. - **Microscopic Examinations:** Detailed analysis for undeniable evidence. ## Professional Background Brenda Petty completed a two-year program at the International School of Forensic Document Examination in 2008. She holds a CQDE certification and a Diplomate designation from the International Association of Document Examiners (IADE). ## Contact Information - **Phone:** (580) 467-4786 - **Email:** Brenda@brendapetty.com - **Address:** PO Box 1234, Duncan, OK 73534, United States - **Hours:** Monday through Saturday, 8:00 AM to 7:00 PM ## Site Structure & Links - [Home](https://experthandwritingexaminer.com/): Overview of Brenda Petty's forensic document examination services. - [About](https://experthandwritingexaminer.com/about/): Background, certifications (CQDE-Diplomat), and professional experience. - [Services](https://experthandwritingexaminer.com/services/): Details on signature verification, handwriting analysis, full forensic reports, and simple opinion letters. - [Testimonials](https://experthandwritingexaminer.com/testimonials/): Reviews and recommendations from past clients and legal professionals. - [FAQ](https://experthandwritingexaminer.com/faq/): Frequently asked questions regarding forgery, signature verification, document authentication, and court admissibility. - [Blog](https://experthandwritingexaminer.com/blog/): Expert insights, tips on fraud detection, and articles on forensic document examination.