Find the Right Expert for Every Case

Consulting Arborist

Daniel J. Maple, Registered Consulting Arborist, ISA Board Certified Master Arborist, ISA Municipal Specialist, ISA Tree Risk Assessment Qualified, Tree & Plant Appraisal Qualified is an arboriculture and urban forestry expert specializing in risk assessment, forensic investigation, and tree & plant appraisals. With a career encompassing hands-on experience in natural disaster response and urban forestry management, he brings a practical and scientifically grounded perspective to his litigation work. His work centers on investigating tree failures, assessing risk mitigation strategies, and evaluating compliance with industry standards. Mr. Maple has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to timber trespass, municipal tree inventories, and construction-related tree damage. His education from the ASCA Academy and WSU in Horticulture, along with certifications such as ISA Board Certified Master Arborist and Tree Risk Assessment Qualified, 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 arboricultural issues.

Expert Witness

Michael D. Stall, MSCE, PE, DFE, CPAU is a forensic engineering expert specializing in the evaluation of design and construction defects. With a career spanning forensic engineering, disaster recovery, and property insurance loss analysis, he brings a multidisciplinary perspective to litigation work. His work centers on investigating construction defects, assessing schedule delays and cost disputes, and evaluating whether property insurance claims align with industry standards. Mr. Stall has been retained in numerous expert witness and consulting engagements across the United States, involving construction defects, insurance disputes, and disaster recovery cases. His Master of Science in Civil Engineering from Stanford University, along with certifications such as Registered Professional Engineer (Texas #65893) and Senior Forensic Engineer (DFE), 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 construction and property loss.

Certified Life Care Planner

Dr. Erika Taylor Simmons, CLCP is a Certified Life Care Planner expert specializing in forensic educational analysis and special education compliance. With a career that spans educational leadership, special education compliance, and life care planning, she brings a multidisciplinary perspective to her litigation work. Her work centers on investigating the adequacy of Individualized Education Programs (IEP), assessing the implementation of Functional Behavior Assessments (FBA) and Behavioral Intervention Plans, and evaluating whether educational practices align with statutory requirements. Dr. Simmons has been retained in numerous expert witness and consulting engagements across California, involving cases related to educational compliance and life care planning. Her Doctorate in Educational Leadership (K–12) from San Diego State University, along with her Certified Life Care Planner (CLCP) credential, reinforce her ability to deliver objective, defensible analyses. She is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of compliance and responsibility in disputes involving educational practices and life care planning.

Ammo, Firearm, & Shooting Reconstruction Expert

Richard K. Pumerantz, Ph.D. is an Ammo, Firearm, & Shooting Reconstruction Expert specializing in ammunition identification and classification, firearm design and manufacturing, and shooting incident reconstruction. With a career encompassing ammunition design, ballistic trajectory analysis, and toolmark examination, he brings a multifaceted forensic perspective to litigation work. His work centers on investigating cartridge failure, assessing ballistic trajectories, and evaluating whether firearms meet safety and design standards. Mr. Pumerantz has been retained in numerous expert witness and consulting engagements both in the United States and internationally, involving civil and criminal matters related to firearms and ammunition. His Ph.D. in Higher Education, along with certifications such as Crime Scene Investigations and Glock Certified Law Enforcement Armorer, 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 firearm and ammunition failures.

Expert Witness

Othon J. Mena, M.D. is a forensic pathology expert specializing in the investigation of sudden, unexpected, unexplained, and unnatural deaths. With a career encompassing roles in medical examination, pediatric death review, and forensic education, he brings a multidisciplinary perspective to his litigation work. His work centers on investigating causes of death, assessing contributing factors in pediatric fatalities, and evaluating whether forensic standards were met in death investigations. Dr. Mena has been retained in numerous expert witness and consulting engagements across California, involving cases of forensic pathology and forensic medicine. His M.D. in Medicine from UCLA School of Medicine, along with certifications in Forensic Pathology, Anatomic Pathology, and Clinical Pathology from the American Board of Pathology, 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 forensic investigations.

Senior Digital Forensics Examiner

Scott Greene is a digital forensics expert specializing in the acquisition, preservation, analysis, and presentation of digital evidence. With a career spanning technology and telecommunications, computer forensics, and internet security, he brings a comprehensive framework to litigation work involving digital evidence. His work centers on investigating digital fraud, assessing electronic logging devices, and evaluating whether data manipulation has occurred. Mr. Greene has been retained in numerous expert witness and consulting engagements across the United States, involving civil and criminal cases, insurance, corporate, and family law disputes. His Systems Engineering degree from the University of Arizona, along with his Arizona and Texas Private Investigator licenses, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving computer and mobile device forensics.

President, Batzer Engineering, Inc.

Stephen A. Batzer, Ph.D., P.E. is a forensic engineering expert specializing in material failure analysis and accident reconstruction. With a career spanning mechanical engineering, materials science, and intellectual property, he brings a multidisciplinary perspective to litigation work. His work centers on investigating material failure mechanisms, assessing accident causation, and evaluating whether design standards were met. Mr. Batzer has been retained in numerous expert witness and consulting engagements across the United States, involving product liability, patent infringement, and vehicle crashworthiness cases. His Ph.D. in Mechanical Engineering - Engineering Mechanics, along with his Board Certified Forensic Engineer 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 mechanical failures and safety standards.

President

Jose Villalobos, P.E. is a corrosion protection systems expert specializing in the design and condition assessment of municipal infrastructure. With a career spanning civil and corrosion engineering, he brings a comprehensive perspective to litigation work involving infrastructure integrity and failure analysis. His work centers on investigating corrosion-related failures, assessing the structural integrity of water and wastewater systems, and evaluating whether industry standards have been met. Mr. Villalobos has been retained in numerous expert witness and consulting engagements across California, Nevada, Texas, Kansas, and Oregon, involving cases related to water and wastewater conveyance, treatment, and storage. His MS in Civil Engineering from Stanford University, along with certifications as a Civil Engineer and Corrosion Engineer in multiple states, 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 concrete and metal corrosion, structural failure, and municipal infrastructure assessments.

Clinical Forensic Medicine Expert

Dr Edward Ogden PSM, MA MB BS BMedSc GradCertMgt FRACGP FAChAM is a Clinical Forensic Medicine expert specializing in alcohol and drug analysis, fitness for interview and detention, and injury interpretation. With a career that encompasses roles in law enforcement, academia, and emergency medical services, he brings a multifaceted perspective to his litigation work. His work centers on investigating clinical forensic evidence, assessing drug and alcohol influence, and evaluating whether medical conditions affect legal responsibilities. Dr. Ogden has been retained in numerous expert witness and consulting engagements across Australia, involving cases related to forensic medicine and addiction. His MA, MB BS, and BMedSc from the University of Melbourne, along with his GradCertMgt, FRACGP, and FAChAM certifications, 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 clinical forensic matters.

Computer Scientist / Systems Programmer - Architect

Robert Gezelter, PhD, AABD, MS, BA is a computer science and IT architecture expert specializing in data security and systems programming litigation. With a career spanning systems architecture, cybersecurity, and digital forensics, he brings a comprehensive understanding of complex IT environments to his litigation work. His work centers on investigating cybersecurity breaches, assessing digital evidence integrity, and evaluating whether network protocols meet industry standards. Mr. Gezelter has been retained in numerous expert witness and consulting engagements across the United States, involving cases in computer forensics, IT architecture, and network security. His PhD in Computer Science, along with his Digital Forensics Certified Professional certification, 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 digital forensics and cybersecurity protocols.

Consultant Forensic Toxicologist

Mr. Christopher Allin Bishop, BSc, CSci, CChem, FRSC is a forensic toxicology expert specializing in alcohol back calculations, drug influence analysis, and illicit drug use. With a career spanning chemical analysis, toxicology, and expert witness testimony, he brings a multidisciplinary perspective to his litigation work. His work centers on investigating alcohol and drug effects, assessing forensic report interpretations, and evaluating whether substances contributed to criminal or civil incidents. Mr. Bishop has been retained in numerous expert witness and consulting engagements throughout the UK, involving cases of drink/drug driving under the influence, alcohol/drug-assisted assaults, and forensic report interpretation. His BSc (Honours) in Chemistry, along with his Chartered Scientist (CSci) and Chartered Chemist (CChem) certifications, 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 the effects of alcohol, drugs, and medications.

Professor of Endocrinology and Diabetes

Jonathan Pinkney BSc, MB BS, MD, FRCP is an endocrinology and diabetes expert specializing in medical negligence and expert witness testimony. With a career spanning clinical management, academic leadership, and forensic hypoglycaemia, he brings a comprehensive medical and legal perspective to litigation work. His work centers on investigating medical negligence, assessing clinical management practices, and evaluating whether standard of care deviations occurred. Mr. Pinkney has been retained in numerous expert witness and consulting engagements across the UK, involving cases related to endocrinology, diabetes, and obesity. His MD in Medicine, along with the Cardiff University Bond Solon Expert Witness Certificate, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of standard of care in disputes involving endocrinology and diabetes management.

Head of Investigations

Mark James Crouch MSci. (Hons.), CPhys, ChFP (Collision), AAE, FInstP, FCSFS, FIMI, MITAI is a collision investigation expert specializing in the reconstruction of road traffic collisions. With a career that includes extensive experience in forensic vehicle examination and traffic accident investigation, he brings a scientific and analytical framework to litigation work. His work centers on investigating collision scenes, assessing mechanical defects in vehicles, and evaluating whether driver actions contributed to the incident. Mr. Crouch has been retained in numerous expert witness and consulting engagements across the UK, involving cases of dangerous driving, vehicle accidents, and forensic vehicle examinations. His Master’s Degree with Honours in Applied Physics, along with certifications such as Forensic Collision Investigation and Advanced Automotive Engineer (AAE), 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 vehicle and scene inspections.

Real Estate Finance, Development, and Hospitality Industry Expert

Fred Schuster, CPA is a real estate finance and hospitality industry expert specializing in complex real estate disputes. With a career encompassing senior executive leadership, institutional real estate finance expertise, and forensic financial analysis, he brings a practical, real-world operational framework to litigation work. His work centers on investigating financial and damages analysis, assessing real estate development and hospitality claims, and evaluating whether brokerage and fiduciary standards of care have been met. Mr. Schuster has been retained in numerous expert witness and consulting engagements across the United States, involving financial and damages analysis, real estate development, and brokerage disputes. His Bachelor of Science in Business Administration (Accounting) from San Diego State University, along with his Certified Public Accountant (CPA) 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 complex financial, operational, and real estate matters.

Principal Mechanical Engineer

Curtis Beloy, PE, DFE is a forensic engineering expert specializing in accident reconstruction and products liability. With a career encompassing vehicle collision analysis, mechanical equipment incidents, and defect evaluations, he brings a comprehensive forensic framework to litigation work. His work centers on investigating vehicle collisions, assessing mechanical equipment failures, and evaluating whether product defects contributed to incidents. Mr. Beloy has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to motorcycles, ATVs, powersport vehicles, and mechanical equipment incidents. His Master of Science in Mechanical Engineering, along with certifications such as Board-Certified Diplomate in Forensic Engineering and BOSCH Crash Data Retrieval System Technician and Analyst, 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 vehicle collisions and mechanical failures.

Michael N. Wakshull, MS, CQE, PMP is a forensic document examination expert specializing in altered document analysis and handwriting verification. With a career encompassing digital forensics, fraud investigation, and expert witness testimony, he brings a multidisciplinary approach to his litigation work. His work centers on investigating document authenticity, assessing handwriting consistency, and evaluating whether alterations have occurred. Mr. Wakshull has been retained in numerous expert witness and consulting engagements across the United States and internationally, involving cases such as contracts, wills, and insurance claims. His Master of Science in Technology Management, along with certifications such as Certified Quality Engineer and Project Management Professional, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of document authenticity in disputes involving altered documents and handwriting analysis.

President, Geomatics Engineer

Christopher Curtis, PLS is a geomatics engineering expert specializing in forensic surveying and mapping in civil and criminal litigation. With a career spanning surveying, LiDAR technology, and geomatics engineering, he brings a comprehensive understanding of geospatial data collection and analysis to his litigation work. His work centers on investigating boundary disputes, assessing fire origins, and evaluating mapping accuracy in complex legal cases. Mr. Curtis has been retained in numerous expert witness and consulting engagements across California, involving cases related to boundaries, easements, structure fires, wildland fire investigations, and catastrophic injuries. His BS in Geomatics Engineering, along with his FAA – Part 107 sUAS REMOTE PILOT certification, 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 land surveying and mapping.

Forensic DNA Scientist & NGS Expert

Charla Marshall, PhD is a forensic DNA scientist and NGS expert specializing in forensic DNA testing and human remains identification. With a career encompassing advanced DNA methodologies and forensic science applications, she brings a robust scientific framework to her litigation work. Her work centers on investigating forensic DNA evidence, assessing kinship inference, and evaluating complex case interpretations. Ms. Marshall has been retained in numerous expert witness and consulting engagements across the United States, involving forensic DNA testing, human remains identification, and population genetics. Her Ph.D. in Anthropology (Ancient DNA), along with her role as a Professional Engineer, reinforce her ability to deliver objective, defensible analyses. She is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving forensic DNA evidence.