Professional Malpractice (General) Consultants: 83

Gregory P. Brown, MD, is a is a Diplomate of the American Board of Psychiatry and Neurology and specializes in the fields of adult Psychiatry and Forensic Psychiatry. His private office is dedicated to the practice of Forensic Psychiatry, and includes evaluations for matters in civil court, criminal court, family court, and independent psychiatric evaluations.

Dr. Brown is an Associate Professor of Psychiatry, and the Residency Training Program Director at the University of Nevada Las Vegas School of Medicine. He founded the Psychiatry Residency Training Program, and has been the Residency Training Director since the time of the first entering class in 2004, under the UNRSOM.

Litigation Support - Dr. Brown has extensive experience in medico-legal work. As a Board Certified Forensic Psychiatrist, he has worked in diverse areas of this subspecialty of psychiatry. Dr. Brown offers litigations support services to attorneys for Plaintiff and Defendant.

Services include Disability Evaluations, Estate Planning Capacity Evaluations, Independent Psychiatric Evaluations, Medical Board Evaluations, Fitness for Duty Evaluations, Department of Energy Fitness Evaluations, Social Security Appeals Record Reviews, and Independent File Reviews for Medical Necessity and for Disability Claims.

Forensic Experience Includes:

• Criminal Court Evaluations - Competence to Stand Trial, Assessment of Criminal Responsibility, NGRI Assessments
• Civil Court Evaluations - Personal Injury with Psychiatric symptoms, Brain Injury with Psychiatric symptoms, Malpractice related questions
• Family Court Evaluations - Involuntary Commitment, Guardianship, Testamentary Capacity, Undue Influence, Contractual Capacity, Fitness to Parent, Child Custody
• Third Party Forensic Evaluations - Fitness for Duty, Return to Work, Disability, ADA Accommodations, Medical Necessity, Independent Psychiatric Evaluations

Roger W. Griffith, PE, has over 37 years of professional experience as a Mechanical Engineer in the design, maintenance, and operation of mechanical systems. He specializes in the areas of Plumbing, HVAC, and Fire Sprinkler Systems Design.

Background - As the principal of Griffith Engineering & Consulting for 23 years, his design experience with commercial and industrial projects include convention centers, schools, office buildings, condominiums, apartment buildings, hotels, churches, manufacturing facilities, medical buildings, restaurants, historic buildings, dormitories, fire halls, and maintenance facilities. Prior to that, Mr. Griffith worked at the Tennessee Valley Authority (TVA) as a mechanical engineer for 14 years. 

His roles at TVA included nuclear piping analyst, valve and heat exchanger specialist, maintenance engineer, and later maintenance supervisor at a fossil plant, and quality manager. His engineering roles included failure analysis of plant equipment. He also taught many courses on the subject of problem-solving and failure analysis for company employees.

Consulting Services:

HVAC Design Plumbing Design Hot Water Systems Design

Legionella Outbreaks HVAC Design Carbon Monoxide Poisoning Sprinkler System Design

View Roger W. Griffith's Expert Witness Profile.

Gulf Coast Risk Management (GCRM) provides research, analysis, and advice to commerce, industry, government and individuals, property managers, and general contractors regarding Insurance Placement, Interpretation, and Recommended Contractual Insurance Requirements, while explaining the relationship and alignment with indemnity and insurance provisions. 

GCRM operates COIs R Us, a certificate of insurance (COI) compliance and tracking company. COIs R Us compares the contractual obligations of a lease agreement with the COI. COIs R Us processes thousands of COIs for landlords and general contractors for compliance annually.

Business Consultant Services

Certificate of Insurance Tracking and Compliance Insurance Renewal Negotiations

Risk Manager Services Start Up Business Services

Certificate of Insurance Tracking - No More Excel

Scott S. Margraves, CIC, has over 32 years of Commercial Property and Casualty Insurance experience. He is the Principal Consultant and Founder of GCRM. Mr. Margraves is well-versed in the placement of insurance policies from an insured's perspective. As a front-line producer, he weathered five major hurricanes, three “five-hundred-year floods” and multiple catastrophic fire claims.

Agency roles include insurance broker, claims supervisor, agency partner, and risk manager. He is Past President of the Independent Insurance Agents of Houston, Past Vice Chairmen of IIAT IMPACT Region 10, Member of Insurance Academy, and Lifetime Committeemen for the Houston Livestock Show and Rodeo.

Mr. Margraves started his second career as a full-time consultant in 2021. He is an insurance industry expert that brings extensive experience in all aspects of property casualty insurance interpretation, policy forms, claims, safety programs, HR coordination and contract integration.

View Scott S. Margraves' Expert Witness Profile.

Harry I. Aronowitz, DMD, is a Board Certified Orthodontist who has been in private practice in Beverly Hills,and West Hollywood California for over 30 years. He is Clinical Professor of Orthodontics at the University of Southern California in the Graduate Department of Orthodontics where he helps train future orthodontists. Licensed in California and New York, Dr. Aronowitz has experience as a Former Chief of Dental, Oral-Maxillofacial Surgery Section at the Beverly Hills Medical Center and served as Chairman of the Orthodontic Peer-Review for the Los Angeles Dental Society. Dr. Aronowitz is a Diplomate The American Board of Orthodontics anda current member of Orthodontic Peer Review for the Los Angeles Dental Society. He is a member of the American Dental Association, The California Dental Association, The Los Angeles Dental Society, as well as The American Association of Orthodontists. 

Litigation Support - Dr. Aronowitz serves as an Independent Medical Examiner for The State Board of Dental Examiners in California. He provides expert witness services to attorneys for both defense and plaintiff, including medical record review, second opinions, depositions, mediation, and trial testimony as needed. 

Areas of Expertise:

Orthodontics Malpractice Braces / Invisalign /Occlusion Root Resorption

Charles H. Heller, PhD, is a Clinical and Forensic Psychologist with over 35 years of experience in his field. Dr. Heller offers consultative expert evaluations to assess children and adults for intellectual, emotional, and mental abnormalities as defined by federal regulations. He is experienced in psychotherapy and psychological testing and provides psychological services to a broad spectrum of clients. Dr. Heller is currently on staff at Rutgers University Biomedical Health Service, specializing in criminal behavior and risk assessment. He also serves as a forensic psychologist consultant for the Rockland County (NY) court evaluation service, where he has performed hundreds of child custody, as well as criminal competency and child abuse/neglect evaluations.

Areas of Specialization:

Bi-polar and other Depressive Disorders Personality / Borderline Personality Disorders Anxiety Disorders Pain Disorders Sexual Problems

Victims of Child Sexual Abuse Alcohol and Drug Problems Family / Marital Issues Mental Health Issues Organic and Brain Dysfunction

Agency Consultation - Dr. Heller also offers consultation to agencies to improve team effort and communication and reduce conflict. He facilitates executive and leadership committee meetings, goal setting, and staff training and clinical supervision of other therapists. Dr. Heller is a Forensic Consultant and custody evaluator for the Rockland County (NY) Department of Mental Health and a Child Custody evaluator for the Bergen Family Center, Court Services Program. He is a Consultant to agencies that include: outpatient and inpatient alcoholism and drug abuse treatment centers, schools, foster care agencies, as well as a variety of group homes for emotionally handicapped, children with special needs, adolescents, developmentally delayed, and dual-diagnosed people.

Law Enforcement Personnel Consultation - Dr. Heller offers his services regarding treatment for alcohol and emotional problems as well as fitness for duty evaluations. Member of the Rockland County De-briefing team for police officers, firefighters, and emergency medical technicians who have been involved in traumatic situations and the treatment of posttraumatic stress disorder. Serve as a clinician for the member assistance program of the New York City Patrolman's Benevolent Association. Serve as an EAP clinician for agents and staff of the U.S. Drug Enforcement Agency (DEA).

Speaking Engagements - Dr. Heller has delivered numerous professional speeches and seminars. His volunteer clinical supervisory and professional activities have been recognized by agencies he has helped.

Manhattan: (Mailing Address) Two Park Avenue, 20th Floor New York, NY 10016 Phone: 212-880-3789 - Alt. Phone: 845-354-0535 Fax: 845-354-1287

New Jersey: (Alternate Mailing Address) 140 East Ridgewood Avenue South Tower, Suite 415 Paramus, NJ 07652 Phone: 201-262-0331 Fax: 845-354-1287

View Dr. Heller's Expert Witness Profile.

Expert Witness: Retained in Washington, D.C., and over 25 states as an expert in hospital administration who could render opinion after assessing medical records, hospital policies and procedures, medical staff bylaws and regulations, JCAHO standards, depositions, etc. Served as Expert Witness for Plaintiff and Defense. 

Consultant: Has assisted hospitals and health systems with accelerating their performance improvement efforts. Speaks, writes and consults on ethical issues in health care. 

Background Highlights:

• Consultant, Executive Vice President and Chief Operating Officer of the health system.
• Executive Director of two academic medical centers: Emory University Hospital in Atlanta, Georgia, Stanford University Hospital and Clinics at Stanford.
• Past chairman of the national advisory board for the University of Chicago’s Center for Clinical Medical Ethics.
• An author of over 175 publications, he has written articles for USA Today, Health Management Quarterly, Trustee, Health Progress, the Journal of Health Administration Education, Frontiers of Health Services Management, Bioethics Forum, Modern Healthcare, the Cambridge Quarterly of Healthcare Ethics, Stanford Medicine, and Healthcare Executive among others.
• Co-editor of Management Mistakes in Healthcare: Identification, Correction, and Prevention, published by Cambridge University Press in 2005.
• Co-editor of Managing Ethically: An Executive's Guide, published by Health Administration Press in 2001, and a second edition, Managing Healthcare Ethically: An Executive's Guide was published in 2010.
• Fellow of the American College of Healthcare Executives, a past member of its Leadership Advisory Committee, and a consultant on health care management ethics since 1994.
• Served as a Distinguished Visiting Scholar at Stanford University’s Center for Biomedical Ethics.
• Recipient of American Hospital Association's Award of Honor in 2009 and an Albert Schweitzer Leadership Award in 2012.
• Faculty appointments held at Harvard, UCLA, Stanford, Emory, the University of California, and Seton Hall University.
• Bachelor of Science, Master of Public Health, and Doctor of Public Health degrees are from the University of California, Berkeley.

Spine Surgery and Spine Medicine Consultant

An evidence-based practice features the best available information translated into patient care. Critical thinking in medicine, and the combined infusion of traditionally designed spine studies and the data mining models of machine learning, create the current state of spine knowledge.

William H. Dillin, MD, is a spine surgery and spine medicine consultant at the Kerlan-Jobe Orthopaedic Clinic. He has been exclusively devoted to clinical spine, interventional spine, and spine surgery practice. He has performed over 7,000 spine operations/interventions and performs a wide range of technical spine procedures. The Kerlan-Jobe physicians serve as consultants to the Los Angeles Dodgers, Los Angeles Lakers, Los Angeles Kings, Los Angeles Sparks, Los Angeles Angels of Anaheim, Anaheim Mighty Ducks, Los Angeles Rams, Loyola Marymount University, and USC Trojan Football.

Litigation Support - For over 35 years, Dr. Dillin has traveled to refine and acquire the technical skills invested in Spine Surgery and Spine Interventions. His expert witness activity is embodied in his Harvard Capstone, "The Trial of the Medical Expert Witness." Dr. Dillin offers Independent Medical Evaluations and/or Medical-Legal Review, thorough reporting, depositions, and trial testimony as needed.

Areas of Expertise:

Spine Surgery Spine Interventions Cervical Spine Surgery Thoracic Spine Surgery Lumbar Spine Surgery Failed Back Surgery Scoliosis Kyphosis Minimally Invasive Surgery

Spine Fusion Cervical Fusion Lumbar Fusion Artificial Disc Replacement Microsurgery Spinal Product Liability Spine Medical Malpractice Spine IMEs Spine IMRs

Interhack Corp is a Computer Expert Firm that specializes in helping corporations and executives with challenges and opportunities involving the use of information. Interhack's focus is in Information Privacy and Security. The company's Information Assurance practice delivers assessment and reporting services to help firms find and keep the proper balance of risk, utility, and expense. 

Interhack's overall mission is to make global computing and communications infrastructures worthy of trust. Their small tactical teams work at peak performance to clearly define the mission, its objectives, and the context in which they operate. Their ultimate product is unassailable opinion, delivered artfully. 

Interhack's Internet Privacy Project (see link above) looked at the Internet infrastructure and how real systems used for online banking, navigation, advertising, and even enhanced DVD and CD content put unsuspecting consumers at risk. Results of this work were reported in the media worldwide and have served as foundation material for discussion in computer science programs throughout the United States and Europe. 

Interhack's Cybersecurity Practice helps you to defend your organization. 

Cybersecurity is a diverse topic, including data breaches, compliance violations, and corporate espionage. Security failures can undermine confidence in a brand and can result in catastrophic losses through changes in customer behavior, canceled contracts, and stolen trade secrets. 

The Interhack system of Cybersecurity Services has six parts. 

Vulnerability Assessment - will show you where your systems are vulnerable, and how your systems are impacted by those vulnerabilities. 

Penetration Testing - shows you how well your organization detects and responds to active attacks by having our team of experts conduct controlled attacks you authorize. 

Information Security Assessment - shows you how well your organization addresses information security, as seen through the prism of relevant industry standards. 

Application Security Evaluation - shows you how your security concerns have been identified and are managed through system design and implementation. 

Network Traffic Assessment - shows you what is actually on your network, and helps you verify that you have only what you think you have. 

Criticality Assessment - provides you a view of your organization's most mission-critical information, where it can be found, and how the organization is impacted by a loss of confidentiality, integrity, and availability.

View Mr. Curtin's Expert Witness Profile.

Mitch Jackson is a master communicator, lawyer and private mediator with over three decades of experience in the private sector. He's personally tried more than 70 trials and has a consistent track record of obtaining and negotiating numerous million-dollar verdicts and settlements, Mitch brings a massive amount of expertise to every case and matter he handles. He's served as a Judge Pro Tem with the Orange County Superior Court and fees mediator with the Orange County Bar Association.

Mitch’s accolades speak volumes: he’s an “AV” rated lawyer, the highest independent peer honor for ability and ethics by Martindale-Hubbell. He’s also been named California Litigation Lawyer of the Year in 2013 and Orange County Trial Lawyer of the Year in 2009.

When he's not in the courtroom or successfully mediating a resolution to a dispute, Mitch is on the move—traveling, speaking at conferences, and sharing insights through his blog and books. He’s written and co-written several notable works, including:

"AI in Law- Revolutionizing Your Legal Practice with Innovative Strategies and Tools" (click to read)

"Mastering The Art of Negotiation- Insider Secrets for Business Owners, Entrepreneurs, and Professionals"

"The Mediator's Handbook: Turning Conflict into Collaboration"

"From Courtroom to Boardroom: A Trial Lawyer's Guide to Winning Negotiations!"

"How to Create AI, Web3, and Metaverse Branding and Licensing Opportunities"

"The Web3, Metaverse, and AI Handbook"

"From AI to Blockchain: 14 Technology Trends Every Lawyer Must Know!"

"The Ultimate Guide to Social Media for Business Owners, Professionals, and Entrepreneurs"

Mitch’s influence extends beyond the legal field. He’s twice graced the stage at the Tony Robbins Business Mastery Event, captivating audiences of thousands. As a consulting expert in Sue Scheff’s "Shame Nation" and a contributing author to California’s Continuing Education of the Bar (CEB) in "Effective Introduction of Evidence in California - Chapter 54 Electronic and Social Media Evidence," Mitch is a sought-after thought leader.

Stay connected with Mitch on LinkedIn and explore more of his work at his blog mitchjackson.com

Dr. Jane K. McNaught, PhD is a locally and nationally recognized Psychological Forensic Expert with an extensive background in Clinical Psychological issues. Dr. McNaught works with both adults and children. She specializes in the diagnosis and treatment of Post Traumatic Stress Disorder and Divorce related issues. 

Dr. McNaught has treated numerous adult and child victims of sexual and physical abuse. She has also consulted on cases for both the plaintiff and defense regarding the reliability of child and adult statements about sexual assault. She also consults on cases involving delayed reports of sexual assault as well as standard of care regarding interviewing alleged victims of sexual assault. 

Dr. McNaught also specializes in criminal cases where sexual assault is alleged as well as mental health issues that may impact sentencing. In the area of Family Law, Dr. McNaught has a long history of providing custody evaluations in high conflict cases that involve personaltiy disordered parents, allegations of physical and sexual abuse, allegations of Factitious Disorder of Self and Others, and cases involving Parental Alienation. Dr. McNaught also works with adults who are experiencing depression, anxiety, and going through life transitions. Throughout her career, she has also treated children who are experiencing behavioral, academic, and social difficulties. 

Clinical Areas of Expertise:

Post Traumatic Stress Disorder Anxiety / Depression Psychological Factors Involved in Chronic Pain Anger Management Attention Deficit / Hyperactivity Disorder

Parent Counseling Following Trauma Divorce Adjustment Counseling Sexually Abused Children Parent Child Reunification Therapy Parent Child Counseling

Dr. McNaught has presented her work at national conferences for psychologists, social workers, physicians, attorneys and judges. Her presentations and workshops have been requested by such organizations as the Criminal Justice Institute, International Symposium on Child Custody Evaluation, Trial Lawyers Association, and many others. Dr. McNaught was one of a few psychologists chosen to be an invited Expert on the Minnesota Supreme Court Task Force on Visitation. She has also been invited to participate in State and County Policy Making Boards related to sexual assault as well as divorce custody issues. She is highly regarded as a state and national expert in the areas of: Sexual Assault, Post Traumatic Stress Disorder, Parental Alienation, Factitious Disorder by Proxy, and Divorce related issues.

View Dr. McNaught's Expert Witness Profile.

With a diverse background in the financial markets, real estate, and health care, I discovered that my true passion and satisfaction is helping others to uncover and achieve financial dreams and build a legacy. I understand the financial markets and the importance of individualized risk management and portfolio planning.  

Principal, EJ Janik, CPA, CFF, CFE is a Certified Public Accountant with 40 years of professional experience. He has been engaged as an accounting consultant on issues involving, among other things, public and private company audits, due diligence, fact finding, asset tracing, lost profits analysis, damage analysis, fraud analysis, insurance claims and business valuations. Mr. Janik holds a Master of Science in Accounting from Louisiana State University and a Bachelor of Commerce from Rice University. He is a member of the American Institute of Certified Public Accountants and the Texas Society of Certified Public Accountants. Mr. Janik has provided expert testimony in over 88 matters including testimony in 58 trials or hearings in 8 states. His experience also includes over 23,000 hours of Engineering and Construction auditing and consulting work on construction claims matters involving:

Acceleration Change Orders Costs Defective Plans Differing Site and Concealed Conditions Direct Costs Disruption Evaluating Claims

Indirect Costs Overhead Payroll Fringe Burdens Profit Pre-Qualification Filings Superfund / Hazardous Waste Sites Terminations Other Construction Issues

Mr. Janik provides accounting, financial, economic, fraud, and business dispute consulting. He has provided over 150 financial audits and consulted in over 765 business disputes. Janik's clients include Bank of America, Coca-Cola Company, FDIC, General Motors Corporation, IBM, Travelers Insurance, and many more. Specific areas of expertise include:

Business Consulting Dispute Consulting Forensic Accounting Damage Analysis / Critiques Construction Claims

Opinions / Reports Fact Finding / Graphic Analytics Accounting / Financial / Economic Modeling Contract Accounting Projections and Trend Analysis

View EJ Janik's Expert Witness Profile.

Dental malpractice & Dental Injury expert testimony.

As of January 2025, I have been deposed over 150 times and reviewed over 1,050 cases for both defense and plaintiff, including peer review, accidents, and malpractice. 52% defense / 48% plaintiff. I have qualified in Superior Court over 75 times and have never been disqualified on the stand or before trial. At least 95% of my time is spent in patient care. 

I can be counted on to be ethical, competent, prepared, analytical, articulate, and persuasive at depositions and court appearances. As of November 2024, there are over 314 published articles, write-ups, and lectures in print, radio, and TV. (http://www.expertwitness.dental/)

 

I hold two current professorships: UCLA School of Dentistry & NYU College of Dentistry. Licensed in 42 states to opine on the standard of care, with specific licenses in California, Nevada, New Mexico, and the Northeast as well as a Florida Expert Certification. Graduated NYU 1988; GPR Residency NYU 1989, Lieutenant, United States Navy 1989- 1991; private practice Brentwood, CA since 1991 – serving over 15,000 patients on a fee-for-service basis.

 

Founder of the non-profit “Homeless Not Toothless” (www.homelessnottoothless.org), which has made it possible for over 135,000 homeless Veterans, women of domestic abuse and foster children to receive over $11 million in pro-bono dental care. 

 

Member: 

American Academy of Cosmetic Orthodontics: 2013-present, American Dental Association (ADA) since 1991 

Peer Review Committee ADA 1995-2009, 

American Legion 2018 - present

Medical Disciplinary Committee Delta Dental 2000-present; Veteran Administration QME Examiner 2019-present

Litigation - When a case is not to the point where an expert needs to be designated, clients and attorneys often benefit from consulting with an expert in order to gain a better understanding of the strengths and weaknesses of their case. Our firm offers services in these early stages, allowing the attorney to consider key questions, such as whether or not the case has enough value for litigating, potential settlement value, and often times forming the framework for discovery requests. With our in-depth experience in banking and real estate, we have been able to help our clients identify key issues to investigate in a deposition, consider different complexities of a case, and assist in fact development by suggesting documents or information to request. When we work in this consulting capacity, our communication is covered by the attorney-client privilege, so our clients and attorneys are free to discuss trial strategy without the worry of discoverability. This has allowed us to add value by performing preliminary analyses to assess the viability of different strategic directions for the case.

Bank Negotiation - Situations may arise where you could benefit from the knowledge and experience of an unbiased party in a financial situation. Whether you need help negotiating a short sale on your commercial property, working with the SBA, or renegotiating an operating line of credit with your bank, we can help. Our many years in the banking industry have given us the knowledge and contacts necessary to help you through the transaction. For these situations that require a greater depth of experience than you may have on staff, JBH Real Estate Experts can do the job on a project basis.

Real Estate Brokerage

Jay Hibert is a licensed Real Estate Broker CA DRE #01523075 . He is happy to assist your existing broker, or he can represent you in a transaction. Jay's expertise is in negotiating transactions between buyer and seller, identifying purchase opportunities for 1031 exchange, contract review, and arranging financing.

View Jay Hibert's Expert Witness Profile.

Bankole A. Johnson, DSc, MD, MBChB, MPhil, FRCPsych, DFAPA, Dip-ABAM, Dip-ABDA, FACFEI, is a leading Neuroscientist and respected global authority in both Psychiatry and Neuroscience. His considerable education and expertise dates to the 1970s, when he received his first general studies diplomas.

Dr. Johnson earned his Medicinae Baccalaureum et Chirurgiae Baccalaureum (an M.D. equivalent) from the University of Glasgow in Scotland. He also received his UK Board Certification in Psychiatry from the Royal College of Psychiatrists, his Master of Philosophy in Neuropsychiatry at the University of London, his Doctorate in Medicine from the University of Glasgow (coursework at the University of Oxford). He also received a Doctor of Science from the University of Glasgow, the highest doctoral degree that can be awarded by a British university.

In addition to these qualifications, Dr. Johnson has also received United States certifications from both the American College of Forensic Examiners Institute, the American Board of Psychiatry and Neurology, and the American Board of Addiction Medicine.

Today, Bankole Johnson is a board-certified psychiatrist and physician throughout both Europe and the United States. He serves as a respected collegiate authority in his field at a leading university in the United States. Dr. Johnson is a leading authority on the effects of abused drugs including alcohol on the brain and how this affects behavior, especially that related to the commission of a crime. He is a national expert on the treatment of opioid addiction as well as on assessing medical malpractice and insurance claims. Dr. Johnson also is a national expert on the effects of diseases of the brain, mental illness, mental disorder, and aberrant behaviors on testamentary capacity. He also is a national expert on assessing disability as a result of mental disorder, mental illness, and alcohol and drug abuse.

Along the way, Bankole Johnson has also been the recipient of numerous high-profile awards in his fields and industries of specialty. In 2001, he received the Dan Anderson Research Award for his research contributions focused on “the scientific knowledge of addiction recovery.” He won the 2002 Distinguished Senior Scholar of Distinction Award from the National Medical Association and a 2006 Distinguished Lecturer Award from the American Psychiatric Association. In 2008, Dr. Johnson became a Distinguished Fellow of the American Psychiatric Association. From 2010, he has been a Fellow of the American College of Neuropsychopharmacology. Dr. Johnson won the prestigious NIH Jellinek Award in 2013 for his scientific advances and discoveries in the field of addiction medicine. He is also the Editor of one of the largest and most comprehensive textbooks in the field: Addiction Medicine: Science and Practice, published by Springer.

View Dr. Johnson's Expert Witness Profile.