Canada’s Largest Forensic Engineering and Fire Investigation Firm

For the last 30 years, Origin and Cause is Canada’s trusted forensic engineering and fire investigation firm. We collaborate with law firms, independent adjusters, insurance companies, and corporate risk managers all across Calgary providing cross-disciplinary expertise. Our legacy and reputation in Calgary as well as across Canada are built on our commitment to facts. We’ve completed over 30,000 cases allowing us to gain global recognition as we guarantee an unbiased statement of facts that is derived from scientific methodology and examination.

Join hands with Origin and Cause for exemplary investigative and engineering services.


Meet our Forensic Experts

We are recognized across Canada as a leading cross-disciplinary forensic engineering and fire investigation firm. Our findings are based on factual evidence determined through examination, scientific methodology, and laboratory testing and we can be counted upon to appear in court as expert witnesses. Our forensic engineers and fire investigators work tirelessly to help clients discover the truth by determining the facts.

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Meet Ryan Dobson

Fire and Explosion Investigator

Designation: CFEI, CVFI

Ryan is a Certified Fire and Explosion Investigator. He brings 23 years of experience working for the Calgary Police Service in the field of fire and explosion investigation. He has undergone extensive training and attended workshops including DNA Sampling, Advanced Interviewing, and Interrogation. He completed over 555 cases dealing with commercial and residential vehicle explosions/fires, non-fire related inquiries and investigations.

He is the recipient of various awards and recognitions including Chiefs Award for Life Saving (1995), Distinguished Service Award (2012), Exemplary Service Medal (2012). He has been a member of the International Association of Arson Investigators (IAAI) and National Association of Fire Investigators (NAFI).

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Meet Keith B. Ellwood

Fire & Explosion Investigator

Designation: CD, CFEI

Keith brings over 8 years of experience working with the Office of the Fire Commissioner and is a certified Fire and Explosion Investigator. He has completed over 100 cases relating to fire, explosion, or technical investigations and has actively conducted 556 inspections as a Fire and Life Safety Inspector at various buildings and occupancy types. He has successfully handled 14 inspections at illegal grow-ops and has been the recipient of numerous awards and recognitions including the United Nations Medal for service, Canadian Forces Peacekeeping Service Medal, and received the Canadian Forces Decoration for 12 years of service. He has attended various sessions and seminars including Modern Fire Behaviour Seminar, Nailor Fire Damper Training Session, and Canadian Identification Society Conference.

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Meet Eddie Deveau

Forensic Engineer & Fire and Explosion Investigator

Designation: P.Eng., CFEI, rmc

Eddie is a Professional Engineer and a Fire & Explosion Investigator with over 10 years of experience. He manages complex fire investigations and failure analysis files. He also oversees scene examination, evidence retention and reporting. He has completed over 150 cases dealing with residential, commercial, vehicle and equipment fires. He has led investigations in the areas of water losses, material failures, electrical failures, collision reconstruction and root-cause failure investigation. He has worked as a Project Engineer where he conducted investigations, research, evidence examinations, and produced engineering reports.

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Experts Leading the Way

Origin and Cause has over 16 offices across Canada and is one of the most reputable Forensic Engineering and Fire Investigation firms. Our team is headed by industry-leading technical experts, engineers, and investigators with years of practical, hands-on experience in the field and in-depth knowledge of their respective disciplines.

Our Services

Origin and Cause provides impeccable services in all forensic investigation and engineering domains. Our experts also handle forensic litigation and have provided expertise in over 1500 legal cases globally.

Relying Only on Facts

Origin and Cause has earned its reputation as a trusted leader in the industry through its commitment to facts supported by rigorous analysis and evidence. The conclusions and findings are based on scientific research and methodology, examination, and laboratory testing. We have been called upon as court witnesses to present our unbiased opinions provided by qualified experts and investigators.

Leadership Team

Mazen Habash

President & Consulting Forensic Engineer

Shauna Hall

Branch Manager

Mario Delorme

Vice President Eastern Canada and Fire & Explosion Investigator

Ken Swan

Vice President Western Canada and Fire & Explosion Investigator

George Costandi

Director – National Sales and Marketing

Vladimir Chlistovsky

Forensic Engineer and Mississauga Operations Manager

Art Beleda

Fire & Explosion Investigator and Branch Manager

Peter Hamilton

Fire & Explosion Investigator and Atlantic Canada Manager

Steve Klimpel

Fire & Explosion Investigator and Branch Manager

Matthew Obach

Forensic Engineer and Branch Manager

Yasser Korany

Structural Forensics Practice Lead & Consulting Engineer