Ralph Aronberg, P.E., has reconstructed over 1,500 accidents and has testified in over 150 jury trials, since founding the firm in 1983. He provides Expert Witness services in the areas of:
Traffic accident reconstruction (cars, trucks, motorcycles and pedestrians).
Vehicle occupant kinematics (seatbelts)
Traffic engineering design (geometrics, signing, markings, signals and lighting)
Sight distance analysis
Hazardous roadway conditions
Work Zone Traffic Control evaluation
Evaluation of roadway curvature
Traffic signal operations
Computerized accident reconstruction and simulation
Vehicle "black box" data retrieval (certified>
Mr. Aronberg is published in the fields of pedestrian / bicycle / motorcycle accident reconstructions, and 3 Dimensional Animations and Scientific Visualizations through the Society of Automotive Engineers. Mr. Aronberg is a Fellow member of the National Academy of Forensic Engineers, and certified as a Diplomat in forensic Engineering.
Barry G. Dickey is the certified forensic expert for Audio Evidence Lab, a laboratory specializing in the Analysis of Audio / Video Evidence. Mr. Dickey has examined evidence in over 1500 cases in the USA, Canada, Mexico, Japan, Philippines and Europe. With over 20 years of experience, he has provided expert testimony in federal and state courts on issues involving audio, video, and voice identification. Utilizing DSP technology, analytical equipment, and microscopic resolution, Mr. Dickey employs scientifically accepted techniques to provide the critical evidence required in the courtroom.
He has consulted with news networks in reference to the "Osama bin Laden Tapes" and "2012 Presidential Debates" as well as tapes released by other foreign news networks. Recent cases also include "NFL Bountygate" and "Holy Land Foundation" investigations.
The recent proliferation of audio and video recordings coming from various terrorist organizations around the world presents two distinct areas of concern to the forensic examiner. This article presents information on the authenticity methodology of videotapes, including a perspective on "implied evidence" and the continuing necessity for voice identification.
Bruce E. Koenig is the senior examiner and founder of BEK TEK LLC. He has been involved in the Forensic Analysis of Audio and Video Recordings on a full-time basis since 1974. Mr. Koenig & his associates conduct forensic examinations of audio, video & still images (e.g. JPEG) media to authenticate, improve voice intelligibility, identify/classify voice and non-voice signals, and enhance video & images.
On-Site Evaluations of Acoustical Sounds and Environments
Presents Expert Testimony
Assists Attorneys in Preparing for Cross-Examination of Opposing Experts
Evaluates Appropriate Recording and Analysis Equipment
Provides Forensic Training in Audio/Video Analysis
The formal procedures for the scientific authentication of audio media in investigative matters and legal proceedings have been updated as a result of the widespread conversion from analog to digital technology since the 1990s.
Authenticity examinations of VHS (video home system) cassettes are commonly performed in forensic laboratories and can usually determine whether a submitted recording is original, continuous, and unaltered. One of the important determinations of this analysis is identifying any portions that have been recorded over
Durand R. Begault received a PhD in Computer Audio from UC San Diego in 1988 and an MFA from Mills College in 1981. He has been associated with the Audio Forensic Center and Charles M. Salter Associates, Inc. since 1996 and has worked as an expert witness, legal consultant, and acoustical consultant on a variety of audio-related cases since 1988. Dr. Begault also holds a research position at NASA Ames Research Center and is an adjunct faculty member at McGill University. He is the author of several U.S. patents and is qualified as an expert witness in both Federal and State Courts. Dr. Begault has testified in over 40 cases on a variety of audio technology and forensic audio-related cases.
Recordings involving cellular telephones or personal digital assistants (“PDAs”) are increasingly the source evidence in audio forensic examinations, compared to recordings originating with other devices such as hand-held digital recorders. On modern PDA cellular telephones recordings can be made either directly to the telephone or transmitted as voice mail messages. The current investigation focuses on differences in the two types of recordings in terms of dynamic range and linearity of levels. Such information can be important for characterizing the distance of sound sources relative to the microphone and are important for understanding transformation of recorded speech and non-speech sounds.
Written by an author with expertise in both theory and applications, 3D Sound for Virtual Reality and Multimedia provides readers an essential technical foundation in sound and virtual reality. The book covers components of spatial auditory displays; psychoacoustics of spatial hearing; what sounds are appropriate to spatialize; applications to human-machine interfaces (including virtual reality and multimedia); computer music; and room acoustics.
Photogrammetry Aerial Photo Expert Witness James Ebert
James I. Ebert, PhD, is a Certified Photogrammetrist (ASPRS) with over 31 years of experience in the analysis, evaluation, measurement, and mapping of data contained in ground-based and aerial photographs and other images (video, digital, etc.), in all areas of forensic investigations and litigation.
Dr. Ebert has an extensive background in preparing attorneys and their experts with the technical knowledge necessary to interpret and testify concerning Photographic and Mapped Evidence. Spanning all parts of the United States and Canada, he has worked on more than 500 cases of bite marks, injury patterns, accident scene mapping, footprints, fingerprints, tires prints, tire defects, product liability photo analysis, fire/arson evidence, bank/convenience store (with camera and ATM film), police excessive force, historical land claims and other litigation-related Aerial Terrestrial Photographs, and other evidential photographs.
Dr. Ebert is a court-qualified expert consultant in:
Introduction to Environmental Forensics, Second Edition, by Brian L. Murphy (Author, Editor), Robert D. Morrison (Author, Editor). helps readers unravel the complexities of environmental pollution cases. It outlines techniques for identifying the source of a contaminant release, when the release occurred, and the extent of human exposure. Written by leading experts in environmental investigations, the text provides detailed information on chemical "fingerprinting" techniques applicable to ground water, soils, sediments, and air, plus an in-depth look at petroleum hydrocarbons.
Archaeology is founded implicitly on the concept of the site, making a careful distinction between sealed sites—presumed to have complete temporal integrity—and the surface record, which is generally considered to be without chronological resolution. While most American archaeologists focus on reconstructing events and episodes at camps, pueblos, and villages, the authoer questions this distinction. Instead, he characterizes the archaeological record as an accumulation of many human events superimposed upon each other across time and distance.
Garrett Discovery Inc. started in 2007, right after the birth of modern-day eDiscovery. Furthermore, Garrett Discovery is not a company birthed from a repair service, IT consulting shop, an additional revenue stream spin-off of a large legal firm, or as part of a large organization's way of funding their own investigation division. Garrett Discovery Inc.only works on pre-litigation or litigation cases and serve as either consultants or experts.
Andrew Garrett, CEO, embarked on a journey almost a decade ago to learn Computer Forensics. At the time, he had worked in the U.S. Navy, attached to various commands, such as the Naval Research Lab at NASA and Space and Warfare as a Penetration Tester. Years later, he found himself as the principal of the largest eDiscovery installation in the world (until 2014). Now he provides services around the globe and loves to help others in complex litigation.
Litigation Support - Mr. Garrett has processed over 1,000 cases and testified over 145 times in multiple states, federal, and tribunal courts. Garrett Discovery has more tools and equipment than the FBI's largest forensic lab in the Midwest. They only bill for the hours an analyst or expert is interacting with the evidence, and in turn, results in large cost savings for your client.
Mr. Broyles represents 17 years experience in providing expert witness and forensic examination services combined with 32+ years experience in research, design & development of computer software and electronic products to include forensic lab equipment and forensic audio/video/image software. This combination of experience gives invaluable insights into the forensic processes and application in each unique case or project. Court Qualified. Detail CV available on request.
Vintage/Obsolete Computer Data Recovery and Conversion, Translation
Digital Image/Photograph Analysis
Recording Equipment Analysis and Testing
Recording Equipment Restoration
Playback Speed Correction
Media Repair and Cleaning Services
Many Tape and Digital Formats Supported
Related Litigation Support
Technical Research and/of Forensic Applications
Dictaphone Restoration and Transfer Services
Specializing in Recorded Evidence Analysis, Enhancement and Restoration Services of Video, Audio, Image, Sound, Voice, Surveillance and Time Lapse Recordings; both digital and analog; through the use of custom and professional analysis systems.
Providing court qualified expert witness services to assist litigation support, public defenders, law enforcement, attorneys, government, and the general public. Since 2004. Local, nationwide and international.
Stated goal is to help you get the most from your recorded evidence. Call now to get started.
Memberships, Affiliations and Training:
Audio Engineering Society (AES)
Institute of Electronics and Electrical Engineers (IEEE)
Law Enforcement Video and Emergency Services Video Association (LEVA)
New York Institute for Forensic Audio (NYIFA)
International Association of Identification Rocky Mtn Division (RMDIAI)
George Reis is the president and owner of Imaging Forensics, Inc., and has been providing expert witness services and training in Forensic Image Analysis, Forensic Video Analysis, and Forensic and Technical Photography through Imaging Forensics since 2004. He is Certified in Forensic Photography and Imaging by the International Association for Identification, and is certified in Forensic Video Analysis by the Law Enforcement and Video Services Association (LEVA). He is a member of the editorial review board for the Journal of Forensic Identification.
Litigation Support - Mr. Reis has testified more than 80 times in depositions and in Federal, State, and Military Courts. He has provided training throughout the United States to individuals and agencies including the FBI, Secret Service, US Army Crime Lab; and internationally in England, Hong Kong, Singapore, Qatar, Canada, and Australia.
Mr. Reis worked from 1989 to 2004 at the Newport Beach Police Department in Southern California, as a forensic photographer, image analyst, crime scene investigator, and latent fingerprint examiner. He introduced digital imaging to that agency in 1992, making them one of the first law enforcement agencies in the world to utilize this technology.
Image Analysis Services:
Image and Video Analysis, Image and Video Authentication, Image and Video Enhancement, Comparative Analysis
Over 1,000 police agencies have taken advantage of digital imaging training by Imaging Forensics — either through regional workshops or in-house training. Imaging Forensics offers regional workshops throughout the United States as well as in-house training to meet the needs of your agency.
When attorneys get a copy of opposing counsel's expert reports, sometimes they are quite surprised by what they read - it's just bad science. And, in these cases they will then retain their own expert to counter, and possibly quash, the other experts opinion. I've been retained in numerous cases to do this, and I'll discuss four to illustrate the benefit this has, and to help illustrate the kind of work that I do.
I was recently retained on a civil case just a month before the trial date. When called about the case, I was told that the firm never thought of hiring a forensic photographer until one showed up in opposing counsel’s expert list. In this case, I needed to photograph the scene of an accident to depict what could be seen from a specific perspective, at a specific time of day, under specific lighting conditions.
My post on Synchronizing Video has generated a few comments related to image resolution. Three people, all of whom have a significant background in forensic imaging, have made rather divergent comments. Multiple topics are being addressed, from crime scene, accident and evidence photography to latent print photography to SWGFAST guidelines/requirements to the resolution of video security camera systems.
John Afrides Photography is a full-service custom Demonstrative Evidence production firm specializing in litigation support for personal injury, products liability and medical malpractice attorneys. With 32 years' experience exclusively in the legal evidence field, Mr. Afrides has worked closely with both plaintiff and defense attorneys, experts, doctors and engineers and has worked on over 35,000 different cases. Services range from the creation of custom trial exhibits such as medical illustrations to day-in-the-life videos.
“Our full-service facililty and expert team is able to produce anything from huge trial exhibits 40”x100’ to 5x7 prints. Our state-of-the-art equipment enables us to digitize radiologic films at the highest resolution, capturing every nuance. This is especially critical with mammograms where the detection of breast cancer can be subtle.” “We take the evidence and create a concise simplified demonstrative that highlights the key points of the case.” “All work is done in-house” explains Mr. Afrides.
Mr. Afrides has a background in legal evidence photography and has been a Certified Legal Video Specialist (CLVS) since 1995 (through the NCRA). He also specializes in videotaped depositions, day-in-the-lives, settlement videos and discovery and inspections. Other credentials include lecturing at St. John’s University and at the NY State Judge’s Conference. He is frequently requested to provide expert testimony and do presentations in court. These presentations include video, audio, E-film, 3D and TrialDirector/Powerpoint with all equipment provided.
Also specialized in photo documentation of construction defects utilizing blueprints and building diagrams. High accuracy instruments used to record leveling, squareness and tolerances to 64" or smaller.
#1 "Best Demonstrative Evidence Provider" 8 years running NY Law Journal.
David G. Koger is a Remote Sensing Image Analysis expert with over 40 years of experience in the field. He configured and operates a state-of-the-art remote sensing image analysis and geographic information system and consults on various remote sensing applications.
BackgroundExperience - Mr. Koger was an early researcher and developer of Satellite Data Applications. He installed analog and digital image analysis workstations and trained users in defense, major oil, and academia in Panama, Ecuador, Chile, Australia, Germany, France, Italy, Africa and the U.S. His clients include the Department of Energy, National Cancer Institute, American Farm Bureau, broadcast journalism, law firms, and several hundred oil and gas explorationists.
In 2007, Mr. Koger conducted a study to map regional geomorphic features for all of Nebraska. Since that time, ten earthquakes of 3.0 and above on the Richter scale have coincided with features mapped. Using Digital Airborne Platforms, he has studied huge areas around the globe.
In his unique line of work, Mr. Koger has performed forensics film analysis, searched for Noah's Ark, and analyzed images of the Shroud of Turin and the underwater video that found the Titanic.
Litigation Support - Mr. Koger offers Forensic Digital Image Analysis of remotely sensed, aerial photo (digital or film), and underwater video. His services include forensics, time-series studies, and documentation of surface damages, wildfires, material movements. Expert witness strategies and research methodologies are available to attorneys representing plaintiff and defendant.
Year after year, their crops, livestock, equipment, barns, out buildings and fences went up in smoke. With nothing left to sell, they reinvested what money they did have (and borrowed) to replace it all. What they could not do—at any cost—was restore fragile habitats and native grasses, which had been groomed and guarded over for generations.
Marc Glickstein, MD, FACR, is a partner in a large private practice radiology group, on the senior medical staff of 8 area hospitals, and an assistant clinical professor of Radiology at University of CT School of Medicine. He has over 27 years of active clinical involvement in Neuroradiology, as well as General Radiology including MRI, Mammography, CT, and Ultrasound.
Dr. Glickstein is a Fellow of The American College of Radiology and a Past President and Officer of The Radiology Society of CT. He is the author of over 25 peer-reviewed articles.
Dr. Glickstein offers litigation support services to attorneys for both Plaintiff and Defense. He has testified as a medico-legal expert over 20 times in the past five years. With his medical background and experience in photography, Dr. Glickstein specializes in providing Medical Demonstrative Evidence to attorneys in personal injury and medical malpractice cases.
Areas of Expertise:
CT & CAT Scan
Demonstrative Evidence - medical
Personal Injury Evaluation
Education: MD, Yale University School of Medicine; University of Pennsylvania; Yale-New Haven Hospital; BA, Brandeis University.
Radiology is a critical component of most medical care. As a consequence of this, legal cases in which individuals are claiming injuries will frequently have imaging studies as a central aspect of the record. Demonstrative evidence can be used as an important instrument in helping to lay the proper foundation for creating a compelling and memorable argument in the presentation of a legal case
With training from Harvard, Yale, Columbia, and other top-tier institutions, Dr. Daniel Cousin is a dual-boarded fellowship-trained expert in Diagnostic Radiology in active clinical practice who offers same-day (<24 hr) turnarounds on radiology consultations.
Dr. Cousin has served as a Medical Director in private practice, and also as a Program Director for a residency program where he was responsible for teaching newly minted doctors to be radiologists. He has nearly two decades of experience in the field including both academic and private practices and both clinical and administrative positions. Dr. Cousin is currently the Clinical Director for BayView Radiology in Florida. He is board-certified by both the American Board of Radiology and also by the National Board of Physicians and Surgeons.
Litigation Support - Dr. Cousin is a pioneer in 4D demonstrative evidence, has an impressive lecturing and public speaking experience, presents well before juries, and has testified as an expert over 60 times in the last 4 years. As of 2021, his plaintiff defense split is approximately 50/50. Dr. Cousin offers Independent Medical Reviews (IMEs), Utilization Reviews, Medical Malpractice Reviews, Personal Injury Protection, Bodily Injury Reviews, Second Opinion Imaging Reviews, Re-Reads, and Worker's Compensation Reviews.
Principle Forensics is a cutting-edge Media Forensics Laboratory. They Recover, Authenticate, Enhance, and Analyze all types of recorded evidence, including Video, Audio, and Digital Images. Principle Forensics backs all their work with experienced, highly trained, expert testimony.
Nick Barreiro, AVFA, DIVRT, Chief Forensic Analyst, is a Certified Audio Video Forensic Analyst and an FBI-trained member of the Digital Imaging and Video Recovery Team. During his 15-year law enforcement career, he was a patrol sergeant, technology project manager, media forensics expert, detective, digital evidence specialist, and patrol officer. Prior to his career in law enforcement, Mr. Barreiro was an audio engineer and producer in California. He also worked for KBMB radio in Sacramento and has extensive experience and training in audio enhancement and analysis.
Litigation Support - Mr. Barreiro works with attorneys representing plaintiffs and defendants in civil or criminal matters in which Audio or Video Evidence plays a key role. He has tremendous technical knowledge and training, but also extensive experience on the witness stand.
Mr. Barreiro has enhanced and analyzed digital media from simple slip-and-fall cases and minor traffic accidents to complex investigations such as homicides and officer-involved shootings. He has testified 100s of times in criminal cases, civil cases, arbitration, and depositions. A highly trained and experienced forensic analyst, he provides technically detailed and precise results with expedited turnaround times.
USAForensic is a boutique state-of-the-art forensics company with two labs in Phoenix Arizona and our booking office on the east coast. This helps with an earlier start each day and with overseas cases.
Specializing in forensic Audio, Video, Cell Phones, Computers Photography & ”Cell Tower tracking” debunking. USAForensic is court certified in Federal, US Military, US District, many State and county courts throughout the United States. International cases are not uncommon. Mr. Neumeister has worked in 23 countries over the past 40 years.
Clients range from the largest Law firms to private firms, large corporations, the Department of Defense, government agencies, advocacy groups, the DOJ to the innocence project.
Technology is flying past the court system. We’re here to work with attorneys to understand how to deal with digital or analog evidence, how to challenge it or how to get it admitted into evidence.
We prefer to work in the background assisting attorneys, even writing out Daubert 702 & 902 issues regarding other parties evidence submissions.
In a recent Federal Daubert hearing USAForensic worked with DOD JAG attorneys to get police cell tower tracking ruled inadmissible. The federal judge rule police cell tower tracking as “Garbage in, Garbage out”.
Not a verifiable science, not peer reviewed, no scientific white-paper to support its use.
Over 600 cases in the past 3 years. From the very highest profile to simple straightforward forensic cell phone extractions or video and audio clarification for court use.
To us Data is Data & takes no side, but it has to be verifiable data.
We've all seen the TV crime shows where the forensic technician opens the grainy surveillance, then zooms in on a tiny face, license plate or scrap of paper, hits the enhance button and, magically, the image becomes sharp and clear (accompanied by appropriate background music).