A professional consortium comprised of subject matter experts in a wide range of scientific and investigative disciplines providing forensic education, training and consultation.
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“Truth Through Evidence”
TxFACT LLC -
Sergeant Nick Webb retired in 2010 after over two decades of service as a municipal police officer. Nick’s last position was the Palestine (Texas) Police Department Patrol Division Commander at the rank of Lieutenant. Sergeant Webb holds an Associates of Science degree from Trinity Valley Community College. Sergeant Webb is a graduate of the 238th session of the FBI National Academy. He is licensed by the Texas Commission on Law Enforcement and holds certifications as a Master Peace Officer, Instructor and Firearms Instructor. Sergeant Webb has been a Texas peace officer since 1990; having previously served as a patrol officer, narcotics agent and detective at the Athens (Texas) Police Department. Sergeant Webb is a crime scene specialist and has been accepted in state court as an expert witness in latent fingerprint examination, collision reconstruction, shooting reconstruction and bloodstain pattern analysis. Sergeant Webb has taught crime scene investigation, digital police photography, bloodstain pattern analysis and shooting reconstruction for police officers, academies and agencies across Texas. Sergeant Webb is an Associate Instructor in Criminal Justice at the University of Northern Colorado where he teaches courses in Bloodstain Pattern Analysis and Shooting Reconstruction. Sergeant Webb returned to law enforcement as a Sergeant in the criminal investigation division of the Henderson County Sheriff’s Office in Athens, Texas.
Detective (ret.) Joe Berreth brings over 36 years of experience as an officer and 32 years as polygraph examiner to the classroom. Joe started his career in the Aberdeen (South Dakota) Police Department in 1970 and was promoted to detective in 1975. He attended the Polygraph Examiners School at Texas A&M University in 1979. Joe served as a detective in Aberdeen until 1985, when he moved to Texas. He was in private practice as a polygraph examiner until 1990, when he joined the Palestine Police Department. Joe was promoted to detective in 1994. Joe was the senior investigator in the department and retired as such in 2010. Joe is licensed to perform polygraph examinations in Texas and South Dakota and has conducted well over 5,000 polygraph examinations. He is routinely called upon by officers and agencies throughout East Texas to assist in major investigations based on his skill as an examiner and interviewer. Joe is licensed by the Texas Commission on Law Enforcement and holds Master Peace Officer and Instructor certifications. Detective Berreth has advanced training in interviews and interrogations, statement analysis and homicide investigation. He is a member of the Texas Association of Law Enforcement Polygraph Operators and formerly served on its board. Joe maintains a private polygraph practice and continues to serve and assist law enforcement agencies and officers upon request.
Tammy Ford, RN, CA/CP SANE. Tammy graduated from Tyler Junior College in 1986 with an Associate in Applied Sciences Nursing degree and was certified as an adult and pediatric sexual assault nurse examiner in 1999. Tammy is the Clinical Manager for Medical Staff Services at Clear Lake Regional Medical Center in Webster, Texas. Tammy has been the sexual assault nurse examiner for the counties of Hidalgo, Rusk, Anderson and Cherokee. She assists law enforcement with the collection of forensic evidence in sexual assault and homicide investigations. Tammy has been in the medical field since 1981 and has worked in the field of intensive care, emergency care, home health, surgery, and cardiac care. Tammy has been accepted in state court as an expert witness in sexual assault trauma and sexually transmitted diseases.
Walter Henson is a 26 year veteran of the Texas Department of Public Safety. Walter is the current Manager of the Fingerprint Processing Bureau. His previous positions included; Automated Fingerprint Identification (A.F.I.S.) Project Assistant, LiveScan Coordinator for the State of Texas, and Forensic Scientist in the Latent Print Section at the DPS Crime Laboratory in Austin, Texas. Walter holds an instructor certification from the Texas Commission on Law Enforcement and has taught classes throughout the State on the Development and Comparison of Latent Prints. Walter has conducted advanced training classes at the Texas DPS Academy and made presentations for the Texas Division of the International Association for Identification and the Texas Rangers. Walter has traveled extensively across the state conducting training classes on AFIS and LiveScan. He has been accepted as an expert witness on fingerprint identification and comparison in State and Federal Court. Walter is the past-
Sergeant Harris has been in law enforcement for 28 years. He has been a “murder cop” for the past 16 years, working a volume of diverse homicide investigations. He holds a Masters degree in Strategic Leadership from Mountain State University, with an undergraduate degree in Law Enforcement and Police Science from Sam Houston State University. Sergeant Harris contributed to the implementation of the Houston Police Department’s Investigative First Responder Program for the city’s southeast patrol quadrant, which trained uniformed officers to investigate complex crimes from the scene. He has been featured in TIME magazine, ABC’s 20/20, Primetime, the History Channel, Fox News Channel and numerous local stations. Sergeant Harris has trained hundreds of law enforcement officers nationally and internationally in Interviewing and Interrogations, Homicide Investigation, and a variety of other courses. Sergeant Harris developed the Houston Police Department’s Interview and Interrogation training program, the Advanced Interviewing Program, the Basic Investigator’s School and the Police Recruiting Interview School.
Sergeant W. R. (Rudy) Flores is a 32 year veteran of Texas law enforcement. He is relied upon as an expert witness in federal and state courts on bloodstain pattern analysis, shooting incident reconstruction and death investigations. Sergeant Flores has served as a Galveston County Sheriff's Deputy, Galveston Police Officer, and Texas Department of Public Safety State Trooper, Sergeant and Texas Ranger. He holds a Bachelor of Science from Excelsior College and is a graduate of the Leadership Command College at Sam Houston State University’s Law Enforcement Management Institute. He holds certifications as a Master Peace Officer, Instructor, Firearms Instructor and Special Investigator from the Texas Commission on Law Enforcement and has over 5,000 hours of accredited training. Sergeant Flores is an Associate Instructor in Criminal Justice at the University of Northern Colorado and Missouri Western State University where he teaches courses in Bloodstain Pattern Analysis, Shooting Reconstruction and Crime Scene Reconstruction. He is one of the founders, and the senior member, of the Crime Scene Investigation Working Group assigned to design, implement and instruct advanced crime scene investigation techniques for the Texas Rangers. Sergeant Flores is the Team Leader of the Texas Rangers, Company “B”, Major Crime Scene Response Team. He is highly sought after as an instructor and trainer and has presented to prosecutors, peace officers, medical professionals, criminalists, and students.
Stan Burke was an FBI agent for 23 years, serving as a field agent in the FBI’s Phoenix, Dallas and Albuquerque Divisions, and as a supervisor and chief at FBI Headquarters and the FBI Academy. While assigned to the FBI Academy, he taught investigative statement analysis; interviewing and interrogation; and law enforcement ethics, for which he was certified as a subject matter expert. As a University of Virginia faculty member, he taught both graduate and undergraduate courses to law-