Workplace Violence Expert Witnesses

911 Consulting specializes in Emergency Preparedness, Training, Drills and Exercises for corporations, campuses and medical facilities. 911 Consulting gives you practical solutions for preventing likely incidents, preparing for emergencies, responding to a crisis and resuming operations. We create a custom emergency plan, train your personnel, and stage drills to make sure you're ready. 

Bo Mitchell was Police Commissioner of Wilton, CT for 16 years. He retired in February 2001 to found 911 Consulting which creates emergency, disaster recovery, business continuity, crisis communications and pandemic plans, plus training and exercises for organizations like GE HQ, Hyatt HQ, MasterCard HQ, four colleges and universities plus 25 secondary schools. He serves clients headquartered from Boston to LA working in their facilities from London to San Francisco. 

Bo has earned 22 certifications in Homeland Security, Emergency Management, Disaster Recovery, Business Continuity, Safety and Security. He also serves as an expert in landmark court cases nationally. Bo is a Certified Emergency Manager, a Certified Business Continuity Professional and Certified in Homeland Security. Professional Designations: CEM, CPP, CHS-V, CBCP, CSI-ML, HSEEP, CNTA, IAC, MOAB, CHSP, CHEP, CSHM, CESCO, CHCM, CFC, CSSM, CSC, CAS, TFCT3, CERT, CHSEMR, CMC

Dr. Adhia is triple-Board-Certified in Psychiatry, Brain Injury Medicine and Forensic Psychiatry. In addition to forensic/expert witness practice, Dr. Adhia has provided patient care in the Houston area. Currently, he treats patients at TIRR Memorial Hermann. His forensic practice focuses on the psychiatric impact of personal injury, medical malpractice, drug and alcohol abuse, sexual abuse, competency, violence, and complicating mental illness, as well as psychiatric disability. Dr. Adhia is among one of the few Forensic Psychiatrists who is also Board-Certified in Brain Injury Medicine. Often, Traumatic Brain Injury (TBI) can be a major factor in litigation as it can result in psychiatric or neurocognitive impairments. He has expertise in psychopharmacology, the medicine of medication. In addition, Dr. Adhia works with Physicians for Human Rights to assess victims of kidnapping and false imprisonment, human trafficking, undue influence, physical and sexual abuse, rape, and fear of imminent death. In all populations, he assesses PTSD, Anxiety, Depressive Disorders, risk of suicide, and malingering. He is experienced in the treatment and impact of drug and alcohol abuse on decision-making. Dr. Adhia has also treated severe psychosis (Schizophrenia, hallucinations) and psychopathology. Dr. Adhia was formerly treating patients at a Maximum Security Prison and prison psychiatric hospital. He has treated Opioid Use Disorders. 

Dr. Adhia’s findings consider complicating factors, such as emotional distress worsened by other active physical and mental conditions. Other factors are pre-existing mental and physical illness, competency and capacity (e.g. dementia, Intellectual Disability.) As a physician, Dr. Adhia is uniquely qualified to review medical records and doctor reports. Institutional medicine, medical malpractice, and standard of care apply to both public and private facilities, including government, regulated correctional institutions, and psychiatric hospitals. Dr. Adhia is skilled in these med-legal issues. Dr. Adhia conducts Independent Medical Examinations, review of records, and reports his med-legal findings and opinions. He is available to testify in civil, criminal, probate, Federal, Immigration and administrative jurisdictions.

Violence Sexual abuse Malpractice and Standard of Care Alcohol and Drug Abuse Anxiety and Depression Psychopharmacology Competency

PTSD Suicide Psychiatric Injury Wrongful Death Correctional Fitness for Duty Brain Injury

Monica M. Argumedo, MD, is a Board-Certified Forensic and Clinical Psychiatrist (ABPN). Dr. Argumedo has testified about her forensic opinions in more than 40 cases in open court. In psychiatric practice for more than 15 years, Dr. Argumedo teaches at Rush University Medical School/Rush University Medical Center as Assistant Professor in Psychiatry. She teaches psychiatry residents in topics related to psychiatry and the law, and psychiatry in medicine. She also interviews prospective medical students through her role on the Medical Admissions Committee.

Dr. Argumedo works with Employers in cases where mental health/psychiatric concerns about an employee require an objective and unbiased Fitness for Duty Evaluation and report. She also consults in employment matters and litigation and serves as a disclosed expert witness. Her work addresses fitness for duty (FFD) in a litigated environment, Wrongful Termination, and Psychiatric Disability. Additional experience includes FFD of peace officers and first responders.

Services - Forensic Psychiatry, Medico-Legal evaluations, medical complications, review of records, written reports, deposition testimony, trial testimony, consultation to attorneys addressing psychiatric issues relevant in a case, opposing counsel expert reports or expert qualifications, assisting with cross-examination questions, and lines of inquiry.

Areas of Expertise:

Fitness for Duty Wrongful Termination Psychiatric Disability Depression Anxiety PTSD Competency Dementia Cognitive Behavior Emotional Distress

Pain and Suffering Standard of Care Institutional Care Medical Malpractice Discrimination Harassment Hostile Workplace Pre-employment Evaluation Security-sensitive Security Clearance

Dr. Brian H. Kleiner was a former human resource manager for Ford Motor Company. He has had over 100 private and public consulting clients and has trained thousands of employees. Dr. Kleiner taught three 36-hour courses on KLCS-TV, has over 500 publications, and has given trial / arbitration testimony in over 70 cases, including one resulting in a $12.5 million plaintiffs verdict in 2014 concerning disability discrimination and wrongful termination. He has been profiled in Bender's California Labor and Employment Bulletin in 2007 as a result of his overall forensic expert successes and other achievements.

Degrees Include:

• B.S. in Business Administration, Drexel
• MBA, UCLA
• Ph.D. Management, UCLA

Dr. Caren Goldberg, Ph.D. is an internationally renowned professor of Human Resource Management. She provides expert witness and litigation support services in employment law cases.

Dr. Goldberg has written over 50 peer-reviewed papers and three book chapters on Diversity, Discrimination, Stereotypes, and Sexual Harassment. She has been quoted in numerous magazine and newspapers, and has appeared on Dateline, NBC, Voice of America, and numerous local affiliate news programs to discuss discrimination and harassment. The Society for Human Resource Management (SHRM) honored Caren as one of 100 diversity thought leaders from business, consulting, government, and academia, based on her research contributions in this area. More recently, SHRM appointed her to a task force charged with developing professional standards in Diversity and Inclusion.

Roger W. Chappell, has over 25 years of experience in the Law Enforcement and Security industry. His experience allows him to assist attorneys for both Plaintiff and Defense in determining whether or not minimum industry standards were met regarding premises liability. Additionally, he has a vast array of experience in criminal investigations.

Mr. Chappell has been summoned to testify as an Expert Witness in Texas District Courts on more than 20 occasions involving the following matters:

• Premises Security Adequacy
• Murder
• Capital Murder
• Felony Murder of a Police Officer
• Aggravated Robbery

Experience - Mr. Chappell is a 9 year Marine Corps Veteran and 22 year retired police supervisor in Houston, Texas. He is also a former corporate security manager, police crime prevention specialist, detective supervisor, police training manager, and internal affairs sergeant. Mr. Chappell coordinated numerous security related functions at hotels, bars and night clubs, and apartments. He has handled large events during the Super Bowl, MLB All Stars, and NCAA Final Four events. He was also a hostage negotiator for over 12 years responsible for the safe resolution to highly stressful and violent events.

Education / Training: Roger Chappell has a masters degree in Criminal Justice Management from Sam Houston State University. He has over 3,000 hours of training relating to active shooter, homicide investigations, kidnappings, interviewing and interrogation, crime scene process, and mental health issues.

Areas of Expertise:

Security Guards Negligence Bar & Nightclub Bouncers Issues Use of Force Investigations and Surveillance Detention and Arrest by Security / Non-Security Personnel

Premises Security Issues / Adequacy Security Management Police Policies and Procedures Workplace Violence Issues Unlicensed Security Activity State and Local Regulatory Compliance

View Roger Chappell's Consulting Profile.

Linnda Durre', Ph.D., Licensed Psychotherapist, (FL License #MH6058) is an expert witness, psychotherapist, family counselor, intern supervisor, international speaker, author, business consultant, adjunct college professor, and a magazine, Internet, and newspaper columnist.

With over 44 years of experience, she consults to attorneys and has been qualified as an expert witness in six (6) states - Florida, California, Arkansas, Georgia, Connecticut, and Washington - in the areas of, Personal Injury, PTSD, Family and Couples Counseling, Divorce, Child Custody, Drug and Alcohol Counseling, Sexual Harassment and Discrimination, Relocation, and Sexual Abuse by Therapists. Her 400-page doctoral dissertation and research in the latter area was cited to pass legislation in several states.

Dr. Durre' hosted and produced three radio shows, two of which were call-in advice shows. She hosted and produced two call-in advice TV shows, including "Ask The Family Therapist," on America's Health Network, which was associated with Mayo Clinic and aired from Universal Studios Orlando.

She has appeared on Oprah, 60 Minutes, O'Reilly (twice), Today Show, Good Morning America, Canada AM, Daytime, Donahue (twice), Sally Jessy Raphael, People Are Talking, Home Show, Hour Magazine, Home and Family Show, Disney Channel, and the local and/or national news on NPR, PBS, CBS, ABC, NBC, CW, and Fox.

Dr. Durre' has been interviewed, cited, and/or quoted by the NY Times, LA Times, Forbes, WSJ, IBD, Business Week, SF Chronicle & Examiner, Toronto Globe & Mail, Albany Times Union, Atlanta Journal Constitution, Orlando Business Journal, Orlando Sentinel, Parade Magazine, Alternative Medicine Magazine, CNN Online, Washington Parent Magazine, Screen Actor Magazine, Florida Magazine, Orlando Magazine, Women's Health Magazine, and others.

As a business consultant, Dr. Durre' consults and speaks to Fortune 500 companies, businesses, agencies, professional and trade associations, and non-profit organizations on customer service training, sales techniques, communication skills, stress and time management, conflict resolution, motivation, personality disputes, team building, job satisfaction, reducing turnover rates, diversity training, and sex discrimination and harassment.

Her book, "Surviving the Toxic Workplace - Protect Yourself Against Co-Workers, Bosses, and Work Environments that Poison Your Day" was published by McGraw Hill and can be ordered online.

Dr. Durre' has spoken to groups, associations, clubs, and corporations as a keynote and motivational speaker, trainer, and/or consultant, including Disney, Whole Foods, Paul Mitchell, Dollar Enterprises, Jacobson's, Girl Scouts, BICSI, American Psychological Association, National Speakers Association, American Management Association, National Association of Bank Women, Altrusa Service Club, and Naval Regional Medical Center.

Dr. Jane K. McNaught, PhD is a locally and nationally recognized Forensic Psychological Expert specializing in Post Traumatic Stress Disorder with adults and children. Over the course of her more than 35 years of practice, she has worked with both Defense and Plaintiff attorneys and has also been a Court appointed expert. Dr. McNaught has administered more than 1700 psychological test batteries and testified on over 500 occasions as a forensic expert in the areas of: Civil, Criminal, and Family Law. She also provides trial consultation for attorneys. Dr. McNaught has  been qualified and testified as an expert in PTSD, for both the U.S. Army as well as the U.S. Navy. In addition she has testified as an expert in both District and Federal court. Dr. McNaught practices in the areas of Civil, Criminal, and Family Law cases involving trauma to both adults and children.

In the Civil area, Dr. McNaught is frequently hired as an expert when there are allegations of Emotional Damages involving Post Traumatic Stress Disorder (PTSD). Dr. McNaught has been hired in cases of alleged sexual misconduct within institutional settings such as: Schools, Churches,, Treatment Centers, Hospitals,Residential Centers for the Handicapped, Jails and other Police alleged violations.The following are cases where Dr. McNaugth has been an expert:  Motor Vehicle Injuries/Death; dog bite; amputation; burns; electrocution. Dr. McNaught has also been anexpert in  Medical Malpractice Cases ,Wrongful Death, and Infant Death cases. Employment Law Experience in cases  involving Age or Sexual Harassmen,t where PTSD is alleged. 

In the Criminal area, Dr. McNaught is hired by both the Prosecution as well as Defense in cases involving Sexual Misconduct. She also conducts evaluations of Defendants in criminal cases where Underlying Psychological Conditions may impact sentencing. Dr. McNaught has also  been obtained as an expert to evaluate the reliability of statements obtained from alleged victims of sexual assault. When doing so, Dr. McNaught addresses the following: Recantation, Memory Research, and the Standard of Care for Interviewing Victims of Sexual Assault. 

In the area of Family Law, Dr. McNaught specializes in High Conflict Dvorce and conducts Custody Evaluations as well as Evaluations regarding: Relocation; Endangerment; Factitious Disorder by Proxy; Parental Capacity; and Parental Alienation. 

View Dr. McNaught's Consulting Profile.

John M. White, CPP, CHPA is Board Certified in Security Management; Certified Protection Professional (CPP); Certified Healthcare Protection Administrator (CHPA); and a Published Author.

Mr. White has been a professional security practitioner, security consultant, and expert witness since 1999. He has over 40 years of experience in Corporate Security Management and Law Enforcement and Security consulting, including physical security, security operations, regulatory compliance, & security training. Prior to forming Protection Management, LLC, Mr. White served a distinguished career in law enforcement, corporate security, and the military.

As a security consultant, Mr. White has developed and/or assessed security programs involving multi-unit residential properties, hotels/motels, homeless shelters, tourism services, places of worship, retail stores, high rise office/residential buildings, food services, entertainment services, healthcare services, hospitals, long-term care facilities/assisted living, parking facilities, college campuses, lounges, and other commercial properties.

In 2013, Mr. White was approached by publisher Butterworth-Heinemann and asked to write a book on security risk assessments. That book, titled: Security Risk Assessment – Managing Physical and Operational Security was published in July 2014 and is available online through numerous bookstores.

Litigation Support - Mr. White has been retained by law firms representing plaintiffs and defendants in negligent security, premises liability, and use of force lawsuits in the field of security. His services include case consultation, document review and analysis, deposition, arbitration and mediation, and trial testimony when necessary.

Areas of Expertise:

Crime Prevention Emergency Preparedness Healthcare Security Premises Security Issues Security Risk Assessments Security Audits

Security Training Security Management Security Program Development Security Policies Use of Force Workplace Violence

View John White's Consulting Profile.

Deanna E. Foster, PhD, is a Licensed Psychologist and President of Psychological Resources and Services, Inc. with 20 years experience in assessing psychological disorders within the context of Employment and Disability issues.

Background - Since 1993, Dr. Foster has been evaluating and counseling management and employees and designing interventions to improve performance, interpersonal behavior, and stress management. She has developed policy and procedure strategies to reduce stress, addressed disruptive interpersonal dynamics in the workplace, and designed and developed interventional strategies to minimize conflict, and improving morale, productivity and efficiency. Her clients have included Apollo Group, Applied Materials, Avnet, Inc., Barclays Global Investors, Black & Decker, DHL, Motorola, Inc., NIKE, Northern Trust Bank, Pitzer College, Sonic Air, Division of UPS, and Toshiba America Medical Systems, Inc.

Litigation Support - Dr. Foster serves as a Forensic Psychology expert witness conducting a broad range of psychological assessments with validity and symptom magnification measures. Her cases include employment law, civil cases, personal injury, disability claims, and psychological injury as it relates to either physical injury or employment situations, such as sexual harassment, discrimination, wrongful terminations, and ADA.

Dr. Foster's services include Agreed Medical Evaluations, Independent Medical Evaluations, Panel Qualified Medical Examinations, and Parole Hearing Assessments. She Writes comprehensive and timely psychological reports delineating how psychological issues correspond to legal determinations. Her expertise is available to counsel representing plaintiff and defendant.

Areas of Expertise:

Retaliation Discrimination Sexual Harassment Hostile Work Environment Disability Issues (ADA) Physical Injury

Wrongful Termination Fitness for Duty Work Stress Disorders Depression Trauma Anxiety

View Dr. Foster's Consulting Profile.

Alan J.  Robinson brings over 35 years of Security / Law Enforcement experience to the  security, safety, fire safety, emergency management field. Mr. Robinson is a former Supervisor, Protection Services for Disney-ABC, Inc. in New York, where he coordinated the security of millions of dollars in equipment for both Reagan Presidential Inaugurations. While at Disney-ABC, he was credited with creating the first hostage negotiation training class after an incident at ABC News in Washington, D.C.

Background Experience: For  the past 25 years, Mr. Robinson has been the Director of Protection and Security Services/Emergency  Management for Atlantic Health System; a hospital system based in New Jersey where he manages: Public Safety and Security, Fire/Life Safety, Emergency  Management, Investigations, and Special Events for a healthcare system that approximately 10 million square feet of physical plant and campus, spread  throughout New Jersey.

Mr. Robinson directly and indirectly manages over one-hundred (100) security  officers, investigators, fire safety officers, emergency management officers, and contract law  enforcement officers. He has successfully navigated numerous external agency regulatory compliance  surveys including those from the “Joint Commission,” State Department of Health, New Jersey Office of Homeland Security, and New Jersey Office of  Counter-Terrorism.

Litigation Support: Mr. Robinson has been retained to provide consultation, security analysis, and security expert witness testimony by plaintiff and  defendant in a wide variety of civil suits. He is available to consult and testify in matters concerning:

Premises Liability Inadequate Security Negligent Security

Crime Foreseeability Private Security Officer Training Security Industry Standards

Areas of Expertise

Workplace Violence Prevention and Investigation · Public Safety & Security · Emergency Management · Preventing Infant Abduction · Child Predator Protection · Narcotic Diversion Investigations · Multi-Facility Management · Asset Protection · Hospital Security · Continuous Process Improvement · Crisis Event Management

View Risk and Threat Analysis Management, LLC's Consulting Profile.

Rose Porterfield Group (RPG) has over 30 years of experience providing Business Performance and Human Resource services. As experts in human behavior, we provide litigation support strategy and testimony for attorneys and corporations. Offering unbiased, detailed, and objective expert opinion on all aspects of human behavior in the workplace, we can help determine the facts, motivations, and human factors involved in the case.

Forensic and Expert Testimony Cases Include:

• Sexual Harassment
• Workplace Injury
• Discrimination
• Retaliation
• Wrongful Termination

Robyn W. Porterfield, PhD - Managing Principal at RPG, spent over ten years in sales and marketing prior to completing her PhD in Industrial Psychology. While completing her PhD, Dr. Porterfield served as Director of Client Services for a Texas-based on-line psychological testing firm, consulting to management on such issues as individual and team fit, conflict resolution, hiring, coaching, and management succession planning.

As a consultant, Dr. Porterfield has assessed executives in such diverse industries as financial management, food service, telecommunications and retail. For five years Robyn and Bob co-wrote a column for the Dallas Business Journal titled, C-Level Coach. Robyn is also a professional mediator and currently mediates for Dispute Resolution Services of Tarrant County, Texas.

Robert G. Rose, PhD, Principal at RPG, received his PhD from Florida State University. Since 1976 he has served as consultant to organizations in virtually every industry including health care, retail, IT services, manufacturing, construction, aviation, and many others. In his over 30 years as a consultant, Dr. Rose has encountered virtually every problem that an organization can experience, and has seen that good teamwork - from hiring to development - always benefits both the individual and the company.

Bob is the author of numerous articles on communication, crisis handling, and conceptualizing purpose and culture within organizations, and his books on consulting are required reading by major corporations..

View RPG's Consulting Profile.

Timothy A. Dimoff, CPP Founder and President of SACS Consulting & Investigative Services, Inc., is considered one of the nation's leading authorities on Security Procedures; Security & Vulnerability Assessments; Police Procedures, including Use of Force; High-Risk Workplace and Human Resource Issues; and Substance Abuse Issues.

He has over 30 years experience in security matters in both the public and private sectors. He is a renowned speaker, expert witness, trainer, and author appearing on national media including Dateline, NBC, CNN, The Chicago Tribune, The New York Times, The LA Times, The Washington Post, and The Wall Street Journal. Mr. Dimoff is the author of six books, including How to Recognize Substance Abuse, The YOU in Business and Life Rage, a chilling examination of societal rage and safeguards against it.

Areas of Expertise: Security Policies and Procedures; Use of Force; Human Resource Issues; Police Procedures; High Threat and Security Vulnerability Analysis, Drugs and Substance Abuse; Law Enforcement Procedures.

Contact: Mart Saferin & Associates - 440-669-6325

View Consulting Profile.

As a highly professional & credible Expert, Consultant, & Speaker, Jean Seawright has provided trusted advice & HR Consultation to thousands of organizations nationwide. As president of Seawright & Associates, a Human Resource Management-Consulting Firm, Ms. Seawright is widely respected for her knowledge of state & federal employment regulations including, but not limited to FLSA, ADA, FMLA, Title VII, & others. Since 1987, she has focused on engagements involving hiring, coaching, & terminating employees; regulatory compliance; charges of discrimination; performance management systems; internal investigations (including harassment); employee handbook development; compensation plan design; HR audits; hiring systems; job descriptions; & others. Ms. Seawright is a frequent speaker at state & national trade associations & is the author of numerous articles & publications in the field of human resources, including the popular book, The Employment Genie®, an exclusive hiring, coaching, & termination system for businesses. 

Areas of Expertise:

• Negligent Hiring and Retention
• Discrimination and EEO Compliance
• HR Policies and Programs
• FLSA and Wage and Hour Compliance
• Harassment
• Expert Witness Services for Employment Law Matters
• ADA
• FMLA
• Hiring Procedures
• Title VII
• Employee Handbooks

Ms. Seawright is available for case analysis, case theory evaluation, expert witness reports, depositions, analysis of other expert testimony, and trial testimony.

Michael S. D’Angelo, CPP, CSC,CHPA is the founder of Secure Direction Consulting, LLC. He has been in the public safety and private security industries for over 25 years. 

Background - Before transitioning into security management, Mr. D’Angelo was a Police Captain, serving 23 years with the South Miami Florida Police Department. During his law enforcement career, he served in a variety of specialized units and gained significant managerial experience as a supervisor, middle manager, and senior commanding officer. Upon transitioning to the private security profession, Mr. D’Angelo was hired as the Corporate Security Manager for Baptist Health South Florida, where he served as an internal consultant for security and emergency preparedness to six hospitals and a multitude of outpatient/non- hospital facilities. D'Angelo achieved both Board Certification in Security Management (CPP) and Board Certification in Security Consulting (CSC). Expanding his expertise in the healthcare sector, he went on to achieve both the Certified Healthcare Protection Administrator (CHPA) and Certified Healthcare Emergency Professional (CHEP) designations. 

Litigation Support - Michael S. D’Angelo provides forensic litigation support for cases involving security negligence and premises liability. Mr. D'Angelo's services include case review, expert testimony, and consultation on security standards and best practices. *Please contact for Mr. D'Angelo's CV. 

View Michael D'Angelo's Consulting Profile.