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Scott De BrouxScott T. De Broux, CEP
Scott De Broux’s experiences and education help him provide his evidence photography students a thorough understanding. Along with his Associate of Science and Bachelor of Business degrees, he has 14 years of law enforcement experience, 26 years of photography experience, and many years of teaching under his belt. In fact, he is an instructor for the Certified Evidence Photographer program, belongs to numerous professional associations and is a Certified Evidence Photographer and Forensic Video Technician.

Scott’s law enforcement experience began in Antigo, WI, and in 1990 he transferred to Appleton, WI. Assigned as Senior Sergeant of the ID Section, his duties included crime scene investigation, latent fingerprint processing, forensic photography, forensic video analysis, and management of the ID Unit.

In 2009 Scott retired from Appleton and is currently running Scott De Broux Imaging, LLC, where he conducts training, consultation and forensic services. He is also an Adjunct Criminal Justice Instructor at Fox Valley Technical College and teaches specialized training and Forensic Science Applications.

Scott stays on the forefront of the field, and he’s taken over 2,000 hours of specialized training (including crime and crash scene investigation, the science of fingerprint identification, forensic photography, digital imaging, and forensic video analysis). He has been published in Evidence Technology Magazine and Government Video Magazine. He has also coauthored research papers on the use of infrared photography in the criminal justice system (and others related to forensic imaging and digital image processing).

David KnoerlineDavid Knoerlein, CEP
"Digital-Dave" Knoerlein is a Certified Evidence Photographer and the President of Forensic Digital Imaging, Inc., a consulting firm that provides forensic imaging services to law enforcement, corporations, and the legal community. As a devoted crusader for the use of digital imaging technologies in law enforcement, Knoerlein is currently researching the issues surrounding the long-term storage and archiving of digitally captured images of evidential value.  

Beginning as a forensic film photographer in 1984, Knoerlein quickly recognized the benefits of digital imaging. He was introduced to forensic digital imaging during his time at the Baltimore County Police Department, becoming a leading authority on the topic. Knoerlein developed and implemented the (SOP) Standard Operational Procedures for the use of digital imaging technologies for law enforcement at Baltimore County, which were later shared by agencies across the nation.

As a forensic analyst for the Broward County Sheriff’s Office, Knoerlein achieved another milestone with the State of Florida vs. Victor Reyes murder case. Knoerlein qualified and testified as an expert in digital imaging, where he dispelled the misgivings of digital imaging enhancements as voodoo science. The Reyes case is one of only a few cases in the United States to successfully pass a Frye hearing that challenged the use of digital imaging enhancement technologies. This case gained national media attention when featured on a 60 Minutes episode entitled “The Hidden Clue.”

Recognized as one of the leaders in forensic digital imaging, Knoerlein was sub-contracted by MoreHits (now Foray Technologies) to provide training to police agencies across the country on their image management software. The Miami Dade Metropolitan Police Institute also recruited him to provide classes on digital enhancement.

From 2003 to 2007, Knoerlein was contracted by the Justice Department as the Imaging Systems Manager for the Crime Scene Investigation unit led by the Army Corp of Engineers to design and manage an imaging system to document the mass grave exhumations in Iraq. This system not only categorized and stored 90,000 images; it also encompassed detailed descriptions and cataloguing to allow for query and analysis of the evidence collected by archeologists, document examiners, pathologists, prosecutors, and all team members. Without question, it was the strictly adhered to Standard Operating Procedures—developed by Knoerlein—that legitimized this secure digital imaging system to withstand any scrutiny in World Court. The evidentiary images gathered and maintained by Knoerlein’s system played a major role in the prosecution of Saddam Hussein and others for genocide in Iraq. This was no small feat given the hostile work environment and geographic obstacles the team faced on a daily basis.

Today, you can expect to find Knoerlein speaking at law enforcement conferences across the country. In addition, he has recently been featured in Evidence Technology magazine’s May-June and Sept.-Oct. 2008 issues.

Thomas Doggett, CEP, CCSI
TThomas Doggett has associate degrees in Photography Technology and Criminal Justice, a bachelor's degree in Business Management, and over 21 years of full-time law enforcement experience (including working as a Crime Scene Investigator for the past 18 years). In addition, he is a Certified Evidence Photographer (CEP) and an IAI Certified Crime Scene Investigator.

Thomas' crime scene investigation and photography experience began in 1993 while working full time as a Deputy Coroner/Death Investigator for the DuPage County (Illinois) Coroner's Office. When he transferred to the Batavia Police Department (situated in both DuPage and Kane Counties) in 1997, he continued to work full time as a Police Officer/CSI, where he continues today. Thomas holds ancillary CSI duties with the Kane County Major Crimes Task Force and maintains the Photo Lab for the Batavia Police Department. In fact, he has been teaching crime scene investigation classes at the College of DuPage Suburban Law Enforcement Academy and North East Multi-Regional Training Center since 2007.

His interest and knowledge of photography goes beyond the forensic specialty, beginning in 1985 when he served as an Infantryman in the U.S. Army’s 101st Airborne Division. There, Thomas always had a camera available and took many photographs of the other soldiers in his unit. Actually, when not shooting crime scenes today, Thomas might be found shooting portraits and weddings.

Thomas is a member of many helpful associations, including the International Association of Identification (IAI), Illinois Division International Association of Identification (IDIAI), Evidence Photographers International Council (EPIC), and Professional Photographers of America (PPA).


D. Eric Johnson, CEP
Eric Johnson retired as a First Lieutenant from the Michigan State Police in JanuaryEric Johnson 2009 after more than 30 years of service. He served as a trooper, first-line supervisor, section commander, and post commander at various locations throughout the state. While serving as an assistant to the Field Bureau Commander for the state police, Eric worked to develop photography training standards, tested cameras and accessories to identify what best served law enforcement applications, and wrote policies regarding digital image integrity standards.

During his law enforcement career, Eric also owned and operated portrait studios at two locations in Michigan. In fact, he has been doing professional photography, including forensic photography, for more than 28 years. He was active with the Mid-Michigan Professional Photographers Association, the Professional Photographers of Michigan, and Professional Photographers of America (PPA). He has won numerous awards for his portrait work, including several Best of Shows and two Top 10 in the State awards. He’s also had prints accepted into PPA’s Loan Collection, a collection of competition images judged to be the best of the best.

Following his retirement, his background in law enforcement and professional photography motivated him to submit photography training courses for the police to the Michigan Commission on Law Enforcement Standards (MCOLES). Eric currently provides such instruction at the state police academy in Lansing, as well as throughout Michigan’s Lower and Upper Peninsula. He offers courses designed for the first responder, as well as evidence technicians and accident investigators, and has provided photography instruction to more than 761 law enforcement officers and first responders from 181 agencies throughout the state.

Currently, Eric owns and operates Forensic Photography Services, LLC. In addition to his instruction, he also provides specialized injury photography to plaintiff law firms throughout Michigan. Eric is a Certified Evidence Photographer and a member of the International Association for Identification (IAI), Professional Photographers of America (PPA), and the National Association of Photoshop Professionals (NAPP).

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