Gary S. Barthel offers nearly 40 years of distinguished military service and legal expertise. Having served as an enlisted Marine and a Marine officer, he is a nationally recognized authority in military law, he provides unparalleled support for complex cases involving military law as it pertains to both enlisted service members and officers. His extensive experience not only spans all ranks, but all branches of the military, allowing him to deliver clear, well-reasoned analysis and expert testimony.
Having a case that involves military issues can be intricate and challenging for civilian attorneys. Gary Barthel combines his nearly 40 years of experience in military law and his practice in the civilian courts to bridge the gaps between the military system and the civilian legal system by providing the insights and credibility necessary to achieve the best outcomes for your clients.
“excellent demeanor, aggressive when needed, compassionate when warranted.” – Chief Military Judge
When dealing with complex military law issues, you need an expert who combines unmatched experience with a strategic approach. Gary Barthel offers a proven track record of delivering precise and impactful guidance on a wide range of military matters. His extensive knowledge of military regulations and commitment to excellence empower organizations to achieve optimal outcomes, regardless of the case’s complexity.
Gary Barthel stands out as a superior choice for military law expertise:
Detailed interpretation of military records, providing essential insights for legal contexts.
Gary Barthel employs a proven, multi-phased approach to ensure all relevant factors are meticulously evaluated and presented with clarity and credibility:
Meticulously analyze all relevant military records and documentation.
Assess the service member’s potential career trajectory using Barthel’s extensive experience and knowledge of military regulations and administrative procedures.
Quantify any economic losses, including potential lost earnings, benefits, and retirement impacts using established methodologies.
Work closely with attorneys to ensure a clear understanding of the case and effectively translate complex military concepts.
Assist with trial preparation, witness examinations, and delivering testimony with clarity and credibility.
This structured approach, combined with Barthel’s unparalleled expertise and unwavering commitment, empowers attorneys to confidently present their cases and achieve the best possible outcomes for their clients.
Gary Barthel provides trusted military expert witness services to legal teams across the U.S., including deposition support, trial testimony, and expert consulting. Based in San Diego, available nationwide.
As an advisor, Gary’s expertise has supported high-profile legal matters, national news coverage, and major production teams.



















