Criminalistics / Criminology Consultants: 12

Aragon National, Inc.'s consulting extends to complex decision-making processes within Law Enforcement and Military Operations, and Health Analytics, and related Social Determinates (systems approach/ complexity / wicked problem approach). Aragon explores the link between visualizing intelligence, giving it meaning (sensemaking), critical thinking, insight generation, and decision-making.

Areas of Expertise:

Dr. John R. Black, President, has over 30 years of experience including International Humanitarian Assistance and Disaster Relief (HA/DR), DoD Joint Technology Research Evaluation and Development, and the extraction of practical insight from Intelligence in support of Strategic Decision-making. He regularly speaks to police leadership, investigators, lawyers, and organizations about the process of inquiry, biases, and sensemaking.

Dr. Black (ret) has over 23 years of experience in law enforcement operations, including patrol, corrections, investigations, training, and command, combined with over 30 years with U.S. Army Special Operations and Peacekeeping (Special Forces, Civil Affairs, and Psychological Operations.

View Dr. John R. Black's Expert Witness Profile.

Dr. Randall Atlas AIA , CPP is a Registered Architect, NCARB certified, and he practices Criminal Justice Architecture and Environmental Security Design. Atlas is a certified protection professional (CPP) with the American Society of Industrial Security (ASIS), and is an appointed member of the ASIS Security Architecture and Engineering Committee. Atlas has his doctorate in criminology and a masters of architecture. Dr Atlas is a member of the American Institute of Architects (AIA) Architecture for Justice Committee.

Dr. Atlas has taught CPTED (Crime Prevention through Environmental Design) and criminal justice courses at Florida International University, Florida Atlantic University, and the University of Miami, Keiser University, and he is a trainer with the National Crime Prevention Institute at the University of Louisville. Dr. Atlas has been a technical Assistance consultant with the National Institute of Justice, National Institute of Corrections, and the Florida Department of Corrections and U.S. HUD Drug Elimination CPTED Program.

He has conducted ADA accessibility compliance audits for private and public sector clients, and served as an expert witness on over 200 premises liability lawsuits.

Dr. Atlas has been a speaker and trainer at security conferences from New Delhi, India to Seattle, Washington and has written over 200 articles in various publications on security, safety, and counter terrorism issues.

Dr. Ron Martinelli, PhD, CMI-V, is a nationally renowned Forensic Criminologist and a federal/state courts qualified law enforcement and premises liability expert who is also a Certified Medical Investigator (physician's level) and a Certified Suicide Investigator. 

Dr. Martinelli directs the nation's only Forensic Death Investigations & Independent Review Team of 26 law enforcement, forensic and medical experts and specializes in officer-involved death cases, civilian self-defense shooting cases and premises liability/security cases. He is a forensic/law enforcement expert to the U.S. Department of Justice, several State Attorney Generals' Offices, numerous major municipalities and nationally prominent private law firms specializing in wrongful death, civil rights and premises liability. 

Dr. Martinelli is the prevailing expert in over 90% of his retained cases. He has saved defendants over $650M and earned plaintiffs over $290 million in jury verdicts and settlements since 2004. He is the media's go-to forensic expert for FOX News, One America News Network, CNN, HLN, Sky News, BBC, NPR, and the History & Discovery Channels. Dr. Martinelli is skilled in officer-involved shootings, in-custody deaths, crime scene reconstruction, forensics, applied sciences, human factors, psycho-medical emergencies and premises liability and security cases. His unique and extensive field experience, combined his academic and scientific credentials, excellent written reports and persuasive testimony, make him a very appealing expert to attorneys and juries alike.

Areas of Expertise:

• Arrests
• Search & Seizure
• Use of Force / Excessive Force - All Levels and Weaponry
• Officer Involved Shootings(OIS)
• In-Custody Deaths
• Criminal Investigations
• Law Enforcement & Corrections Practices, Training & Supervision
• Adult & Juvenile Corrections
• Law Enforcement Negligence
• Civilian Self-Defense, Premises Liability, Security, Foreseeable Harm
• Insurance Cases
• Human Factors

Global Forensic Services, LLC (GFS) is a Forensic Consulting, Laboratory and Investigative Firm offering over 37 years of experience and training in a wide range of forensic science and private investigation disciplines.

Larry Stewart has personally examined tens of thousands of individual items of evidence from sources such as state, local, and federal agencies (e.g. Federal Bureau of Investigation, Secret Service, Bureau of Alcohol, Tobacco and Firearms, Central Intelligence Agency, and others), and foreign governments. On several occasions he has examined cases involving international disputes between governments. 

Mr. Stewart has testified as an Expert Witness in state, federal and military courts of law, as well as in foreign court systems to include; Austria, Australia, Canada, Germany, Sri Lanka and Thailand. He has also testified at The Hague in the Netherlands and three times as an expert before the U.S. Congress. 

Areas of Expertise Include:

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:

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.

View Dr. Heller's Expert Witness Profile.

International Firearm Specialist Academy (IFSA) is a guild of award-winning experts, former Federal Agents, Investigators, Police Officers, Medical Doctors, and an Attorney, in the Firearm and Forensics field. IFSA is the first and only company to offer a simplified step-by-step program that takes clients from present knowledge-level to a safe, accurate, and competent Certified Firearm Specialist.

Online Training Courses:

Principal Daniel G. O'Kelly has over 40 years of experience as a range instructor, builder, and collector of Firearms and Ammunition. 

Background Experience - Mr. O'Kelly served for 11 years as a Police Officer and for 23 years as a Special Agent for the Bureau of ATF, where he was Lead Instructor of Firearm Technology at the ATF National Academy. Since his retirement from the ATF, he has served as a Senior Corporate Manager for the largest firearms retailer in the world, co-developing a firearm technology and ATF compliance training program for that company, and is presently the Director of IFSA. 

An Armorer for fourteen firearm manufacturers/gun designs, including Beretta, Colt, DS Arms, FN, Glock, H&K, Kimber, Remington, Ruger, SIG, S&W, and Springfield Armory, Mr. O'Kelly has toured and done research at numerous firearm and ammunition factories and firearm reference collections across the U.S., Europe, and Africa. He is a regular Consultant for several firearm manufacturing companies, and regularly presents seminars to thousands of law enforcement personnel and licensed dealers, manufacturers, importers, and collectors nationwide on firearm enforcement, ID & technology, interstate nexus, and ammunition to law enforcement and the firearm industry. 

View Daniel O'Kelly's Expert Witness Profile.

Brian L. Landers has 20 years of Law Enforcement experience, as well as over 25 years in Law Enforcement Training and Education, including experience as a police and jail academy director and a full-time criminal justice professor.

Mr. Landers holds a Masters Degree in Public Administration, a Bachelor's Degree in Criminal Justice, and is pursuing his PhD in Forensic Psychology at Walden University. He also holds multiple certifications as a Master Trainer for law enforcement topics and use of force. 

 Mr. Landers frequently serves as a media consultant on police and criminal justice issues for ABC, NBC, CBS, and Fox News affiliates. He was elected to three terms on the Columbia County Board of Supervisors (WI) and three terms as Mayor of the City of Wisconsin Dells. His trusted knowledge and experience have been recognized by those he has served in all capacities, and his expansive background has propelled him to be an incredibly reliable, trustworthy, and confident consultant.

A full-time educator and trainer, Mr. Landers' services include:

Consulting - Performance and Personnel Evaluations

Research - Use of Force Concepts, Training Guidance, and Policy Revisions

Training - Use of Force Concepts, Policy Training, and Training Curriculum Services

View Brian L. Landers' Expert Witness Profile.

Timothy A. Dimoff, CPP, is a nationally recognized authority, consultant, author and trainer offering total package solutions relating to employee issues including workplace violence, substance abuse, management training, FLMA /discrimination issues, bullying, sexual harassment, documentation procedures, liability reduction, hiring/firing and pre-employment screening procedures, corporate investigations, internal theft, and security analysis/vulnerability assessments. 

As founder and president of SACS Consulting & Investigative Services, Inc., one of the nation’s leading security consulting firms, Mr. Dimoff has over 40 years of experience in Security and Human Resource matters serving both the public and private sectors. He is multi-certified in the security field. He is board certified by ASIS as a Certified Protection Professional (CPP?) which is internationally recognized as the “gold standard” certification for security management professionals, demonstrating their knowledge and competency in seven key domains of security. 

Mr. Dimoff is also an A.L.I.C.E Certified (Alert, Lockdown, Inform, Counter, Evacuate) Training instructor; a member of InfraGard, a joint professional organization between the FBI and security professionals to work collectively against crime, terrorism and to improve educational abilities and knowledge for the private sector; a member of NOITR, a joint professional organization between the Secret Service and IT security professionals to work collectively against crime, terrorism and improve educational abilities and knowledge for the private sector with emphases in the IT and internet areas; and is a member of the American Society for Industrial Security (ASIS). 

Mr. Dimoff has written dozens of security-related articles and has authored four books. He also provides media commentary and profiling analysis for TV, radio, internet and print media worldwide. He holds a Bachelor of Science Degree in Sociology with an emphasis in Criminology from Denison University. 

Areas of Expertise: 

View Timothy A. Dimoff's Expert Witness Profile.

George Schiro is a DNA Technical Leader - Forensic Scientist. His duties include incorporating the DNA Advisory Board (DAB) standards, accountability for the technical operations of the lab, conducting DNA analysis using the 13 STR core loci and Y STR in casework, DNA research, forensic science training and crime scene investigation.

Mr. Schiro has worked over 3500 cases and has qualified as an expert over 175 times in 31 Louisiana parish courts, Arkansas, California, Florida, Mississippi, Missouri, Nevada, New York, Texas, West Virginia, federal court, U.S. court-martial, and two Louisiana city courts. Has also consulted on cases in 29 states.

Qualified as an Expert in the Following Areas:

SIMCO specializes in Jail, Prison and Corrections Expert Witness and Consultation Services.  Founder, Joseph Gunja is a Jails, Prisons and Corrections Expert with more than 30 years of experience in the corrections industry.

Mr. Gunja had a distinguished career with the Federal Bureau of Prisons (FBOP) for over 28 years serving as a Correctional Officer, Shift Supervisor, Investigator, Captain, Associate Warden, and Warden at three complex correctional facilities. He also served as Regional Director of the Western Region for over 2 years and was assigned to the FBOP's Headquarters in Washington, DC where he was responsible for authoring national policy and official publications, providing technical expertise to the Assistant Director of Correctional Programs and facility Wardens, Associate Wardens, and Captains. 

Mr. Gunja also served as the Keynote Speaker and Trainer at the FBOP's Management and Specialty Training Center on a monthly basis After retiring from the FBOP in 2007, Mr. Gunja has been providing correctional consultation services. In addition, he has worked for two of the largest private corrections companies, CCA and GEO Group, as Warden at the Northeast Correctional Center in Youngstown, Ohio, and the Great Plains Correctional Facility in Hinton, Oklahoma. 

Consulting Services Include:

View Joseph E. Gunja's Expert Witness Profile.

Roy G. Taylor is a current Chief of Police with over 40 years of experience in a wide-range of federal, state, local, and private criminal justice positions. He delivers comprehensive and intelligent Law Enforcement and Security Services to federal, state, and local governments, and is authorized to work on private or government properties including parks, any government owned buildings, land, public housing communities, hospitals, schools, or similar areas. 

Dr. Taylor's experience and expertise includes use of force and firearms instruction; recruiting, selection and assignment; employee supervision, evaluation and retention; curriculum development; policies and procedures design and implementation; canine utilization; budgeting; public relations; and emergency management. 

Current Positions:

• Chief of Police Blue Ridge Public Safety (2014)
• President/CEO Signal 88 Security of Charlotte (2012)
• President/CEO Capitol Special Patrol (2012)
• Chief of Police Capitol Special Police (2002)
• LT. Colonel – Provost Marshal, Army National Guard (2000)
• Antiterrorism / Emergency Management Branch Chief DoD (2007)
• Provost Marshal Joint Civil Support Task Force, Joint Chiefs of Staff (2014)

Specific Services:

View Roy Taylor's Expert Witness Profile.

Emanuel Kapelsohn is an internationally recognized Firearms Training and Use of Force consultant who has instructed thousands of police and security officers, federal agents and others throughout the U.S. and abroad since 1980. He currently serves as a consultant to

• Manufacturers of Firearms and related products regarding design, human factors, safety and training issues; product literature including warnings and owner's manuals; development of user, instructor and armorer training programs, materials and training aids; marketing issues; and risk management
• Cities, States, and Governmental Entities regarding development, review and implementation of use of force policies, law enforcement training programs and issues, response to critical incidents, and risk management
• Law Enforcement and Security Agencies regarding selection of firearms and related equipment; design and implementation of training programs; safety surveys and safety protocols; qualification standards; development and review of written departmental firearms and use of force policies; and evaluation of specific use of force incidents and firearms accidents

A graduate of Yale University and Harvard Law School, Mr. Kapelsohn is a practicing attorney in addition to his consulting work. As vice president of the Internat’l Assoc. of Law Enforcement Firearms Instructors, he is a certified in force science and shooting scene reconstruction, and as an instructor in numerous law enforcement disciplines. 

Mr. Kapelsohn is a featured presenter at national and international instructor conferences. He has authored over 130 published articles, is Associate Editor of "Standards & Practices Guide for Law Enforcement Firearms Instructors," and principal author of "Firearms Training Standards for Law Enforcement Personnel," and "Guidelines for Simulation Training Safety."

View Emanuel Kapelsohn's Expert Witness Profile.