Police - Law Enforcement Consultants: 16

ConsulTex and Associates is a Houston based security consulting company that provides security strategies for individual clients, law enforcement, and corporate security clients. ConsulTex is available nationwide to answer questions regarding security measures, or offer solutions that fit their clients' needs.

Services Include:

• Expert Witness Analysis
• Use of Force
• Police Procedure and Practice
• Security Tactics and Policies
• Training and Speaking Engagements

Principal, Roger W. Chappell, has over 25 years of experience in the Law Enforcement and Security industry. A 9 year Marine Corp Veteran, he is also a former corporate security manager, police crime prevention specialist, detective supervisor, police training manager, and internal affairs sergeant.

As Security Management Professional, his background includes an advanced 22-year law enforcement career with the highly regarded Houston Police Department. He received over 40 awards in that capacity, including supervisory and civilian commendations.

Mr. Chappell has more than 20 years of training and “hands on” experience evaluating, developing, and managing security and crime prevention programs. He coordinated numerous security related functions at hotels, bars and night clubs, and apartments. Mr. Chappell 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.

Roger Chappell has served as both a private sector security consultant and a public sector Master Peace Officer. He has earned a stellar reputation as an expert in hostage negotiation and received the prestigious Hostage Negotiator of the Year award in 2013.

View Roger Chappell's Expert Witness Profile.

Donald L. Leach, II, is a Jail / Corrections Management expert with over 30 years of experience. Mr. Leach has 20 years of consulting experience on jail management issues nationally, focusing on Risk Management for Jails and Jail Operational Methodology. His clients have included the Department of Justice, Ministry of Justice, The Netherlands, National Institute of Corrections, American Jail Association, Voorhis-­-Robertson Justice Services, among others. 

Mr. Leach has extensive supervisory experience, having overseen up to 402 employees (indirectly). He also supervised internal affairs investigations, experienced in interviewing, hiring, training, scheduling, motivating, evaluating, and dismissing personnel. He is experienced in administering and managing a large detention facility, developing and administering programs, budgeting, contract development and monitoring, conducting research, monitoring compliance with policies and procedures, community relations, public speaking, controlling costs, problem-solving, and preparing reports. 

Consulting Services:

• On-site Facility Evaluation of Jail Management Systems and Classification Systems
• Data and Information Systems Analysis
• Developing / Enhancing Jail Classification Programs

Mr. Leach also provides Training Seminars in developing and implementing jail classification systems and risk management methodologies. Training topics include:

• Objective Jail Classification
• "Objective Reasonableness" in Jail Use of Force
• Managing Inmate Behavior in Jails
• Managing Gay, Lesbian, Transgender, and Intersex Inmates
• Reasonable Management of Suicide in Jails
• Reasonable Use of Restraints in Jails and Prisons

View Donald Leach's Expert Witness Profile.

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 $600M and earned plaintiffs over $280 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

Dr. Mayer is an independent consultant and scholar that (for identification only) holds the position of Visiting Fellow in Human Flourishing,  Harvard University. He has been a full-time tenured professor with recent appoints in statistics, biostatistics, epidemiology, biomedical informatics, public health and medicine (psychiatry). He held various titles including, Professor (Part-time), Bloomberg School of Public Health and School of Medicine, Johns Hopkins University, Affiliated Professor, Mayo Clinic/ASU joint program in Biomedical Informatics, a member of the Research Staff at Mayo Clinic, and Professor at Arizona State University. 

Dr. Mayer continues to do research and mentor young physicians and medical students while doing a limited amount of consulting in epidemiology, biostatistics, statistics, observation studies and clinical trials. His consulting projects often focus on model development, execution and inferences. He is one of the few MD/PhD epidemiologists. He led a  group of 6000 physicians and epidemiologists that reviewed the science of COVID-19 

Michael Levine – Security and Investigative Consultant, D/B/A SENTAC INTERNATIONAL INVESTIGATIONS. Network of Ten-Percenters - There is an old saying in Federal Law Enforcement: “Ten percent of the investigators are responsible for ninety percent of the cases.” Mike Levine is one of the most decorated supervisory agents in the history of the Drug Enforcement Administration. He has 45 years of courtroom and field experience (civil and criminal) as a Trial Consultant, Expert witness, and Investigative / Security Consultant. A Police Training Consultant, 

Mr. Levine specializes in Undercover Survival and Informant Handling Tactics and Procedures, saving lives and providing indemnity to law suits. Mr. Levine has direct and immediate access to a hand-picked network of investigators comprised of men and women who have proven themselves with long experience as creative, hard driving and successful experts in each of their fields, and like himself are each much awarded veterans of law enforcement.

 Services Offered:

• Complicated Investigations in Support of Litigation (intra and international)
• Personal Security Assessments and Counseling (all areas)
• Plant and Operational Security Assessments and Counseling (all areas)
• Sensitive Position Background Investigations and Counseling
• Investigative and Research Support Extensively Backed by a Continually Updated Database of Information that Relates to Each Area Expertise
• Media & Technical Consulting

Background Experience - Michael Levine's law enforcement career encompasses 25 years service with DEA, Customs, BATF & IRS Criminal Investigations Division. His supervisory experience includes being in command of task force units combining officers of FBI, BATF, IRS, Customs, NYPD and other local police agencies. During Mr. Levine's Department of Justice service, he served as an OPR (Office of Professional Responsibility) Inspector during which time he was trained in the reliable methods of investigative file review in affixing management responsibility for operational failures, tactics which he has continued to use in the analysis of cases and the testimony related thereto. 

Mr. Levine has extensive experience working executive protection details for both the Secret Service and Department of Justice and is a graduate of the Secret Service Executive Protection Training Program. He also served as a Security Consultant and Operational Advisor for a major internet pharmaceutical company. 

Michael Levine is currently lecturing on Undercover Tactics and Informant Handling for the US State Department in Brazil. His widely published articles and books include the New York Times and national best-sellers Deep Cover, The Big White Lie, and Fight Back, the community anti-drug plan recommended by the Clinton Administration Drug Policy Office, BLIND MULES-FICTION OR FACT?, and The Weakest Link, a paper based on Michael Levine’s presentation before the Defense Intelligence College, Southern Command, analyzing the devastating effect of unqualified management in law enforcement and military on public safety. 

While still serving as a DEA supervisory agent in 1988, Mr. Levine was the subject of A Random House/Times Books biography, Undercover, by Donald Goddard Mr. Levine has been a consultant and on-air expert for in excess of one hundred radio and television shows, including 60 Minutes, CNN, Crier Report, MSNBC, CBS News & Morning Show, ABC’s Nightline, Crossfire, Macneil Lehrer News Hour, and CBS. He also appeared on The History Channel’s "20th Century", Geraldo, Eye on America, Like It Is (Gil Noble), Dick Cavett, Inside Edition (Bill O’Reilly), Sony Pictures, Spelling Productions, Contrapunto (Spanish language version of Crossfire) and more. Mr. Levine is also the host of New York City’s “The Expert Witness Radio Show,” featuring interviews with top international law enforcement and legal experts covering all the areas of Mr. Levine’s expertise. 

View Michael Levine's 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: 

Security / Law Enforcement Policies and Procedures Aggressive Behavior Human Resources Policies Successful Hiring Practices Violence Free Firing Practices Terminated Employee Risks

Physical Security Vulnerability Assessments Diversity and Discrimination in the Workplace Drug and Alcohol Abuse Issues Identifying High Risk Employees Defusing Difficult People Workplace Theft

View Timothy A. Dimoff's Expert Witness Profile.

Second Look Training and Forensic Consulting, LLC is a veteran owned and operated business developed to provide quality Investigative Training for Detectives, Crime Scene Investigators and Prosecutors. All of their instructors are experienced detectives or crime scene analysts, most are published, all have been recognized in court as expert witnesses in their respective field of expertise, and each has already provided training to law enforcement and forensic professionals. Their training is based on investigative experience, sound investigative, forensic principles, and the latest forensic techniques.

List of Courses Offered:

Investigating Staged Crime Scenes Forensic Aspects of Death Investigation Bloodstain Pattern Analysis Investigating Sexual Assault Cases

New Detective Course Child Abuse Investigations Digital Evidence for Law Enforcement College Enrichment Courses

Principal, Arthur S. Chancellor is a Law Enforcement Expert with over 40 years of experience, including 30+ years as a Special Agent, supervisor, and Commander with the US Army Criminal Investigation Division. He is currently an Instructor and Consultant at Second Look Training and Forensic Consulting, LLC.

Mr. Chancellor has personally investigated or supervised several thousand felony investigations which occurred on a military base or in the civilian community. He has processed over 200 homicide death scenes and qualified multiple times as an expert witness in the area of Crime Scene Analysis and Crime Scene Examination. 

Mr. Chancellor's focus in the last 15 years is on death and sexual offenses. His specialty is Staged Crime Scenes also known as Staging which is a crime scene alteration made by an offender to misdirect a criminal investigation. His most recent consultations have centered on homicides staged to resemble some other event or in false sexual assaults.

View Arthur S. Chancellor's Expert Witness Profile.

SecureLaw LLC is a Security & Legal Consultancy providing substantive, corrective strategies, designed to address, and remedy criminal acts and problematic behaviors along with limiting liability exposures. SecureLaw’s cutting edge, dynamic and effective solutions are tailored to specific needs, combining legal, financial, and organizational implications associated with each remedy.

Dr. James F. Pastor, Ph.D., JD, CPP, Principal at SecureLaw LLC, brings a unique and remarkable decades long year career in Policing, Public Safety, and Security, starting as a tactical officer in Gang Crime Enforcement for the Chicago Police Department, one of the most active policing units in the country.

As a security expert, author, attorney, and former professor, Dr. Pastor merges security methods, academic theories, and legal principles; providing an exceptional level of depth and breathe to any case. As an attorney, he served and advocated for police unions, and for both security guard and electronic security firms, providing broad experience into the security industry and public safety. 

Augmented with a doctorate in Public Policy Analysis, he understands that policies create incentives and drive human behavior. As these directly impact public safety and crime, few possess his experience, his unique insight and his security sense.

Consulting Services:

• Security Law Counsel - Dr. Pastor provides support to corporate counsels, or in some cases directly to corporate decision makers, depending upon the circumstances. His deep understanding of both legal principles and security methods couples with an intuitive security “sense” derived from decades of public safety and security experience provides a unique perspective that deliver results results that are concrete, actionable and effective.
• Terrorism & Extremism / Lawlessness: Indicators & Assessments - Through his experience as a tactical police officer in the gang crime unit in Chicago that provided a perspective few possess, Dr. Pastor has also devoted thousands of hours studying, training and researching this crucial and timely threat and tactic. He has written extensively on this topic, including two books foreshadowing today’s disruptive environments: Terrorism and Public Safety Policing  and You Say You Want a Revolution: A Compelling & Cautionary Tale of What Lies Ahead.
• Risk Management & Security Liability - Dr. Pastor utilizes performance-based and industry-specific risk assessment methodologies designed to deter, detect, delay and response criteria for protecting assets. His timely and appropriate security policies and protocols, security technologies and risk management techniques  reduce liability exposure and enhance the protective environment. Significant Projects.
• Private Police Consulting - SecureLaw LLC tackles the problem left when municipal governments are faced with difficult budgetary decisions along with increased fear and crime. Those who are ready to respond with innovative, thoughtful solutions like private policing, are the change agents who will lead the way during this transition in policing and public safety. The Privatization of Police in America
• Accomplished Speaker - Dr. Pastor has broad and deep expertise on a variety of security and public safety issues. As an accomplished author, he is also a gifted, passionate speaker. If you are interested in engaging, please view a List of Topics.

View Dr. James F. Pastor'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:

Mobile Patrol Stationary Guard Alarm Response Residential and Commercial Business Checks ATM / Bank Escorts VIP / Management Escorts Investigations Arrest of Violators

Hostile Employee Terminations Emergency Response Planning Site Security Assessments Crime Prevention Seminars Anti-Terrorism Instruction Community Policing Programs In-Service Law Enforcement Training Public Relations

View Roy Taylor's Expert Witness Profile.