Matthew J. Hartley, BS, FIES, LC

Matthew J. Hartley, BS, FIES, LC is a lighting expert specializing in forensic lighting investigation. With a career spanning engineering, architecture, and photometry, he brings a multidisciplinary perspective to his litigation work. His work centers on investigating lighting safety and security, assessing lighting standards compliance, and evaluating whether lighting design meets industry specifications.

Mr. Hartley has been retained in numerous expert witness and consulting engagements across North America, involving premises liability lighting, security lighting, and insufficient lighting cases. His Bachelor of Science in Architectural Engineering, along with his Lighting Certified (LC) designation, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving lighting safety and security.