Nelson Collision & Criminal Investigations Group, LLC strives to be the trusted leader in personal injury collision analysis and vehicular criminal defense support by delivering precise, ethical, and evidence-driven forensic services that uphold truth and accountability. We are committed to setting the standard for professionalism, integrity, and scientific reliability in every engagement.
Through advanced methodologies, continuous professional development, and a disciplined application of accepted investigative principles, we support attorneys, insurers, public agencies, and private clients with clear, defensible findings. Our mission is to strengthen case outcomes and empower effective representation by providing objective, method-driven analysis in every matter we undertake.

Patrick Nelson is an experienced accident reconstructionist and criminal investigator with a career spanning law enforcement, criminal defense, and advanced forensic analysis. He has conducted comprehensive traffic crash investigations involving serious injury and fatal collisions, applying principles of vehicle dynamics, scene geometry, human factors, and physical evidence analysis to develop scientifically supported conclusions. His work includes detailed scene documentation, forensic mapping, collision modeling, and expert report preparation, as well as courtroom testimony explaining complex reconstruction findings in a clear, defensible manner. With extensive training through nationally recognized programs and hands-on experience supporting legal defense strategies, his investigative approach emphasizes accuracy, methodology, and effective case representation.
In addition to his accident reconstruction expertise, Patrick Nelson served in specialized law enforcement assignments requiring advanced analytical, tactical, and investigative skills. As a member of a Special Assignments Unit, he conducted complex investigations involving open-source intelligence, covert surveillance, and high-risk operations. He led and trained personnel in tactical response, mission planning, and risk mitigation while coordinating joint operations with local, state, and federal partners. This experience strengthened his ability to manage complex cases, evaluate threats, and operate effectively in high-pressure environments—skills that directly support thorough investigative analysis and expert case preparation.

Nelson Collision & Criminal Investigations Group, LLC is expanding its capabilities with the onboarding of new subject-matter experts across multiple investigative disciplines. These professionals bring specialized knowledge and advanced experience that will enhance collision analysis, criminal investigations, and litigation support services. Their addition strengthens the firm’s ability to deliver comprehensive, timely, and well-supported findings tailored to the evolving needs of our clients.




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