Bureau Forensic Document Examination (BFDE – formerly Diann Vail Document Examination) is based in London Ontario. Canadian based and grown from the expertise of Diann Vail Forensic Document Examination, BFDE provides professional document examination services and testimony if needed. Clients include lawyers, investigators, corporations and individuals. One on one access to the expert doing the examination in Canada, with an awareness of local laws and giving personal attention to every client.

Nathalie A. Bureau has a degree in Psychology/Mathematics and in Education. This background in human behaviour and mathematics provides unique skills in examining handwriting which she began with Diann Vail in 2012. A Document Examiner like her mother and grandmother before her, Nathalie is now the third generation to carry on the work. Nathalie is a member of SAFE (The Scientific Association of Forensic Examiners) and has trained with Kathy Koppenhaver at IADE (International Association of Document Examiners), and has obtained certification as a Certified Questioned Document Examiner. Continued study of current relevant topics with other professionals is ongoing with both SAFE and IADE. Nathalie has also studied under Reed Hayes and successfully completed his reputed training course. She has been court qualified in Ontario and Nova Scotia courts and has worked on cases from coast to coast.

Nathalie A. Bureau
B.A, B.Ed;

Court Qualified, Certified Questioned Document Examiner;

Member of SAFE: Scientific Association of Forensic Examiners;
Member of International Association of Document Examiners – IADE;
Certified Graphoanalsyst.

If you or your business requires these services, please contact Nathalie for more information.

Diann Vail’s certification was obtained in 1974 and she was a practicing examiner from that date. Court Qualifications were obtained in Nova Scotia, Quebec, and Ontario. Most recently in London, Ontario in 2010, Diann was court qualified in the criminal system. Diann trained Nathalie in all aspects of Forensic Document Examination and Handwriting Identification since 2012 and now Nathalie has taken a front seat in continuing the work Diann has been doing for over 40 years. Diann Vail retired in 2016 and has since passed away but she leaves her business in the capable hands of Nathalie A. Bureau, her daughter, who is now the third generation of Document Examiners in the family.

As a tribute to my (Nathalie’s) mother, I dedicate this business, and my work, to her memory. She has instilled in me a strong work ethic, with integrity and honesty at the forefront. Purple was a colour my mother loved, and so this website uses purple to commemorate her. Her legacy of providing quality questioned document examination services continues, rich with her wisdom experience, and combined with my training.  ❤

Diann Vail
B.A, (Hons); Court Qualified;
Certified Questioned Document Examiner;
Certified Graphoanalyst