Police Practices and Procedures Expert Witnesses: 19

“We settled the case...for $5 million. Your report played a huge role in that.  Thank you for everything!”  Nick H. 

Beth A. Mohr, CFE, FSA, CFCS, CAMS, CCCI, MPA, PI, is a Police Practices expert with over 30 years of sworn and non-sworn investigative experience.  Ms. Mohr has testified as an expert in numerous state and federal court proceedings, depositions, and administrative hearings in federal and state courts, including New Mexico, Ohio, Illinois, Arizona, California, and Washington State.  Ms. Mohr has testified on a variety of subjects, including police procedures, police misconduct, white-collar crime, and fraud examinations.  Her expertise has been verified by the courts via a Daubert challenge, in which Ms. Mohr was found to be qualified as an expert in police practices generally, and well as the specific areas of interviewing, interrogation, false and recanted confessions, cognitive bias, investigations and investigative failures, vice, and human trafficking.  Ms. Mohr is neutral, fair, and her opinions are rooted in provable facts, as well as academic literature, where appropriate.  She strives to balance her cases between defense and plaintiff-sided cases, and also provides habeas consulting services.  

Ms. Mohr is credentialed as a Nationally Certified Law Enforcement Instructor by the IADLEST, and is one of fewer than 150 individuals who have been nationally certified as an expert law enforcement instructor.  She is a Certified Fraud Examiner, Certified Force Science Analyst (FSA) Certified Anti-Money Laundering Specialist (CAMS), Certified Financial Crimes Specialist (CFCS) and a Certified Cyber Crimes Investigator (CCCI).  She is also a Private Investigator (PI) licensed in New Mexico, Arizona, Texas, and California.  

Areas of Expertise:

• Police Practices and allegation of Police Misconduct
• Excessive Force, Deadly Force & Use-of-Force
• Taser, ECWs, and other uses of force intended to be less-lethal
• Interviewing, Interrogations & False and Recanted Confessions
• Police Ethics
• Investigative Failure, Cognitive Bias, Confirmation Bias
• Habeas Consulting, including death penalty cases
• False Arrest
• Failure to Train / Failure to Supervise               
• Evidence Handling
• Police Policy, SOPs
• Fraud & White-Collar Crime
• Vice & Human Trafficking
• Money-Laundering Cases
• Cryptocurrencies / Bitcoin
• Retaliation & Qui Tam
• Workplace Violence & Sexual Harassment
• Private Investigations & PI Failures

During her career with the San Diego Police Department, Ms. Mohr was awarded three Commanding Officer’s Citations, which were the highest awards offered by the San Diego Police Department for investigative acumen at the time.  After retiring from the San Diego Police Department, she conducted death penalty mitigation investigations and other complex felony investigations, including homicide and white-collar cases, for the Whatcom County, Washington, Public Defender’s Office.  This includes conducting investigations of allegations of police misconduct for the City of Albuquerque Independent Review Office. Ms. Mohr recently chaired the City of Albuquerque’s Police Oversight Board, a civilian board that was created as part of the US Department of Justice’s Consent Decree with the City of Albuquerque and the Albuquerque Police Department.

Ms. Mohr has published a chapter entitled “Skepticism”, in the newly-released book The Art of Investigation Revisited, as well as having penned articles for bar journals and other peer-reviewed publications.  Ms. Mohr has taught courses on law enforcement topics, including interviewing techniques, investigative ethics, evidence collection, financial and fraud investigations, and many other topics. Her ethics courses, investigative courses, and fraud courses are certified for law enforcement credit.

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

Aaron T. Olson has decades of experience in the field of Police and Human Resources. His foundation of knowledge and skills comes from a career in law enforcement, and being a college educator, expert witness, consultant, trainer, and private investigator.

Background Experience: Mr. Olson has 26 years of police experience with the Oregon State Police managing assignments in communications, recruitment, and patrol. He supervised and evaluated both police and non-police employees. He was a member of the OSP Procedures and Rules Advisory Committee and worked with Oregon's Department of Justice legal team in rewriting and validating OSP's trooper and cadet applicant hiring process. 

As a patrol supervisor, Mr. Olson directed major crime scenes and motor vehicle fatalities investigations. He reviewed and approved administrative, police, and use of force reports. He investigated allegations of police officer misconduct, conducted background checks, and participated in specialized tasks in community policing, dignitary protection with the U.S. Secret Service and other law enforcement agencies. In his tenure he had experience in police pursuits, the use of physical force and deadly force and next-of-kin death notifications.  

Mr. Olson is a former human resources investigator with Local Government Personnel Institute, Salem, OR. He conducted background and misconduct investigations on city and county employees and city and county elected officials, as well as city police chiefs. His misconduct investigations included sexual harassment, discrimination, retaliation and hostile work environments. He wrote the investigative reports and made the findings of facts on all misconduct allegations.

Besides being an expert witness, Mr. Olson is a private investigator. He is insured and bonded, and licensed through the Oregon Department of Public Safety Standards and Training, Private Investigator License #113509.

Mr. Olson is a published co -writer of multiple books, CARE Approach: Seeking Solutions to Human Problems and Multicultural Law Enforcement: Strategies for Peacekeeping in a Diverse Society. Further, he is an adjunct professor teaching at a community college and state university.

Litigation Support: Mr. Olson meets the criteria of an expert witness as outlined in the Federal Rules of Evidence. He has experience as an expert on cases involving police misconduct, police procedures, police and non-police use of force, police pursuits; wrongful death; personal injury; employer investigations on employees; and cases involving employer negligent hiring, negligent training, negligent supervision, negligent retention, management performance and retaliation. He also has experience in reviewing criminal cases for defense attorneys. Mr. Olson's services are available to attorneys' representing plaintiffs and defendants and include diagnostics, thorough reporting, depositions, arbitration hearings, and trial testimony as needed. Contact him today for a free initial consultation.

Areas of Expertise:

Law Enforcement and Criminal Justice Police Practices and Procedures Police Investigations and Arrests

Human Resources Practices and Investigations Negligent Hiring, Retention, Failure to Train/Supervise  Bias, Discrimination, Harassment and Retaliation

View Aaron T. Olson's Consulting Profile.

Dennis Fivecoat has over 25 years of Use of Force and Firearm experience in the Military (20 years, retired) and private sector including significant training in the area of Civilian Law Enforcement.  He has attended numerous firearm and use of force related training courses including instructor development with local and federal law enforcement agencies, tactical firearm, close quarters battle, concealed carry, force-on-force training, use-of-force, and legal updates.

Litigation Support - As an instructor-trainer (Master Instructor) in firearms and less lethal devices (pepper spray, expandable baton, defensive tactics, handcuffing), Mr. Fivecoat has a practical and academic basis in the use of deadly and less-lethal use of force by civilians.  His experience teaching firearm use, defensive tactics, and use-of-force allow him to provide opinion on not only proper use of the tool or tactic utilized, but whether the actions were reasonable under the circumstances of the incident.

Mr. Fivecoat provides consultation and testimony on the reasonable use of force, self-defense, and defense of others. Private citizens may become involved in situations (shootings, brandishing, threats with weapons, excessive force, false arrest, false imprisonment) where the reasonableness and legality of their actions are challenged. Review of actions taken, firearm use, and the education of the expert provide the foundation for determining the reasonableness of each parties’ actions. Mr. Fivecoat will review the incident and opine based on local law, training standards, and the reasonableness of the use of force under the circumstances and conditions of the incident. 

Areas of Expertise:

Reasonable Use of Force Excessive Force Local Law Training Standards Firearms Tactical Firearms Firearm Brandishing Pepper Spray Expandable Baton

Defensive Tactics Threats with Weapons Handcuffing Close Quarters Battle Conceal Carry Self Defense Defense of Others False Arrest False Imprisonment

Background - Dennis Fivecoat is a retired US Army physician assistant with a wide variety of functional background and experience. He has seen service in eight different countries encompassing desert, jungle, snow, and maritime missions. His past responsibilities range from combat in SW Asia to hospital duties as an ICU nurse in South Carolina. He has responded during national hurricane relief efforts and somewhat smaller Defense Support to Civil Authority (DSCA) missions. Click for Full Biography.

View Dennis Fivecoat's Consulting Profile.

Chief Chet Epperson (Ret.), MBA, has over 44 years of experience as a Law Enforcement / Police Professional for the Rockford Police Department in Rockford, Illinois. Chief Epperson spent 33 years as an active law enforcement officer and 10 of those years as Chief of Police. 

Chief Epperson maintains practical experience as a municipal police chief, implementing several police reforms in his police agency along with accountability processes. He was instrumental in reforming the Rockford Police Department by enhancing its relationship with the community and providing internal and external transparency. Chief Epperson assisted in the formulation of a multi-jurisdictional task force to investigate officer-involved police shootings, in-custody police deaths, and serious uses of force.

Litigation Support - Since 2016, Chief Epperson has been serving as a Police Practices consultant, providing court-appointed expertise in police agency Federal District Court Consent Decrees. He is an expert in applying constitutional standards, state Law, policy, and practice to police incidents. Having Instructed courses on police use of force, internal affairs, and discipline, Chief Epperson is qualified to opine on cases of this nature for both plaintiffs and defendants. His police and jail litigation services include thorough reporting, deposition, and trial testimony as needed.

Areas of Expertise:

Police Officer Involved Shootings Police / Jail Use of Force Excessive Use of Force Internal Affairs Supervision

Police Training Police Practice & Policy Police Discipline Police Mental Health Police Auditing

View AGR Police Practice Group's Consulting Profile.

Dr. John R. Black is a recognized expert with extensive experience in international, federal, and state courts on Lethal Force, Police Use of Force, Officer-Involved Shootings, and Civilian Self-Defense, blending forensic analysis with human-centered perspectives and systems thinking. Dr. Black employs a systems thinking approach that enables him to view incidents from multiple perspectives. He regularly speaks to Police leadership, investigators, lawyers, and organizations about how we think about the process of inquiry, our biases, and our sensemaking.

Litigation Support - Dr. Black is qualified as an expert witness in state and federal courts related to police practices, police use of force, decision-making, officer-involved shootings, police tactics, police training, incident command, and police / jail operations. He is also qualified with similar expertise for civilian self-defense and use of force events.

Expert in Use of Force & Lethal Force Incidents & Decision-Making

In cases involving force--lethal force, understanding decision-making is as critical as the facts themselves. Whether you are a defense attorney explaining your client’s actions or a prosecutor challenging them, you need an expert who integrates both events and decision-making processes. Dr. Black offers a unique approach, blending quantitative precision with qualitative insight into how individuals make sense of their world. he is a recognized expert with experience in international, federal, and state courts on lethal force, police use of force, officer-involved shootings, and civilian self-defense. He combines forensic analysis with human-centered perspectives, ensuring a balanced view that benefits both defense and prosecution.

Advanced Forensic Video and Qualitative Analysis

Video evidence often plays a pivotal role in determining the facts. Dr. Black is skilled in forensic video analysis, using Amped Five software to extract key details. What sets him apart is his ability to combine video analysis with qualitative thematic tools like Atlas.TI, understanding both what happened and how individuals interpreted their environment under stress.

Cognitive Interviewing and Human Performance Expertise

Dr. Black specializes in cognitive interviewing, exploring clients’ mindsets during critical moments leading up to the use of force. His approach bridges the quantitative analysis of human performance with qualitative insights into violent encounters, offering a comprehensive view of why actions were taken.

Military and Law Enforcement Expertise

With 30+ years in U.S. Army Special Forces and 23+ years in law enforcement, Dr. Black brings unmatched experience to each case. He provides practical insights grounded in real-world experience. His background ensures a comprehensive understanding of how policy, training, and decision-making intersect under pressure.

View Aragon National, Inc.'s Consulting Profile.

Roger W. Chappell, has over 25 years of experience in the Law Enforcement and Security industry. His experience allows him to assist attorneys for both Plaintiff and Defense in determining whether or not minimum industry standards were met regarding premises liability. Additionally, he has a vast array of experience in criminal investigations.

Mr. Chappell has been summoned to testify as an Expert Witness in Texas District Courts on more than 20 occasions involving the following matters:

• Premises Security Adequacy
• Murder
• Capital Murder
• Felony Murder of a Police Officer
• Aggravated Robbery

Experience - Mr. Chappell is a 9 year Marine Corps Veteran and 22 year retired police supervisor in Houston, Texas. He is also a former corporate security manager, police crime prevention specialist, detective supervisor, police training manager, and internal affairs sergeant. Mr. Chappell coordinated numerous security related functions at hotels, bars and night clubs, and apartments. He 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.

Education / Training: Roger Chappell has a masters degree in Criminal Justice Management from Sam Houston State University. He has over 3,000 hours of training relating to active shooter, homicide investigations, kidnappings, interviewing and interrogation, crime scene process, and mental health issues.

Areas of Expertise:

Security Guards Negligence Bar & Nightclub Bouncers Issues Use of Force Investigations and Surveillance Detention and Arrest by Security / Non-Security Personnel

Premises Security Issues / Adequacy Security Management Police Policies and Procedures Workplace Violence Issues Unlicensed Security Activity State and Local Regulatory Compliance

View Roger Chappell's Consulting Profile.

Donald L. Leach, II, is a Jail / Corrections Management expert with over 30 years of experience. He has 20 years of consulting experience on jail management issues nationally, focusing on Risk Management for Jails and Jail Operational Methodology. 

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.

Litigation Support - Mr. Leach has served as an expert witness for 5 years, in both State and Federal court. His services are available to counsel for both Plaintiff and Defense and include case review, testimony, and consultation for jail and prison issues.

Areas of Expertise:

Jail Management Use of Force In-custody Death Security / Operations Medical and Mental Health Services

Classification Contract Management for Privatized Services Management Information Systems Strip Search Gang and STG

View Donald Leach's Consulting Profile.

My name is David T. Sweeney.  I am a Police Policy and Procedure expert and a retired 34-year veteran police leader with Seattle Police and Oregon State University PD.  I have decades of experience supervising a large number of police officers and supervisors. I am currently employed as adjunct faculty in the School of Police Staff and Command at Northwestern University. I enjoy assisting with expert reviews of policing best practices for a variety of legal standards for police departments. As an expert witness, I have been pleased to work with both plaintiff and defense attorneys. I will give you an honest assessment of your case, so that I can provide the best reports and helpful testimony. I have experience with 41 total cases: 16 defense cases and 25 plaintiff cases.

Litigation Support - My goal is to improve best practices in policing by offering expert witness and police consultation services. I am also a trained mediator specializing in workplace conflicts. I provide honest, unbiased opinions. I will be happy to review and discuss your case. I will point out strengths and weaknesses of the case, and we can work on next steps, whether it be further case review, expert report, deposition, or trial testimony. I have spent 21 years as a sergeant and lieutenant, responsible for training and reviewing topics such as police pursuits, use of force, police tactics, de-escalation, police supervision, less lethal weapons, active shooter, SWAT, crowd control, legal standards, EEO, Human Resources, U.S. 1983 cases, and more.

 Areas of Expertise:

Police Policy and Procedure Police Pursuits / Collisions Use of Force Less Lethal Weapons Emergency Vehicle Operator's Course (EVOC) Early Intervention Legal Standards for Police De-escalation

Crisis Intervention Equal Employment Opportunity (EEO) Special Weapons and Tactics (SWAT) Police Training Active Shooter Rapid Intervention Internal Investigations Mediation

View David T. Sweeney's Consulting Profile.

California Main Office: 793A East Foothill Blvd., #200 San Luis Obispo, CA 93405

Global Forensic Services, LLC (GFS) is a Forensic Consulting, Laboratory and Investigative Firm offering over 44 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:

Questioned Documents Crime Scene Evaluation Trace Evidence Ink Analysis Age Determination Authenticity Fraud Investigations

Handwriting Daubert and Cold Case (consultant) Investigations Indented Writing Striations Typewriting Erasures Office Machines Tracing

Brian L. Landers has nineteen years in Law Enforcement 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. He has served as an expert for both the plaintiff and defense in over seventy cases involving law enforcement and corrections in federal courts across the United States.

Experience: A former law enforcement officer, Brian started his career in patrol and K-9 and was promoted to supervision as a sergeant and eventually as a lieutenant in charge of the agency's training, tactical unit, and hiring procedures. He also handled a variety of investigations and use of force reviews for various agencies.

Brian currently works full-time as a professor of Criminal Justice. He was appointed by the Wisconsin Department of Justice to serve on the state's Tactical Advisory Committee and Law Enforcement Ethics Advisory Committee, was a Wisconsin Criminal Justice Coordinators Committee President, and was appointed by the Wisconsin State Legislature to the state 911 Advisory Committee. He also was elected to three terms as Mayor of the City of Wisconsin Dells and three terms on the County Board of Supervisors (Columbia Co. WI).

Brian frequently serves as a media consultant on police and criminal justice issues for ABC, NBC, CBS, and Fox News affiliates, and has authored columns for Officer Magazine on police practices, training, and use of force.

Areas of Expertise:

Law Enforcement Use of Force Response to Persons in Crisis De-escalation Police Training Agency Policy  Internal Investigations Officer involved Shootings Traffic Stops and Searches

Firearms Tasers Baton Tactics Incapacitating Sprays Less Lethal K-9 Deployments Police Defensive Tactics Jail & Correctional Training & Procedures

Education:

Liberty University (2023-Current) Doctorate of Criminal Justice American Military University (2017) Master's of Public Administration Mount Senario College (2002) BS- Criminal Justice FBI Law Enforcement Executive Development Graduate

View Brian L. Landers' Consulting Profile.

David W. O`Laughlin is an experienced, innovative leader in the world of Law Enforcement Training. Having been directly involved in the training of police officers for more than 35 years, he has obtained certifications in a multitude of disciplines and has become a Master Use of Force Instructor and Force Science Analyst.

Mr. O'Laughlin recently retired from the Brookline Police Department. As President of the Massachusetts Police Training Officers Association, he was appointed by Governor Weld to serve on the Executive Board of the Massachusetts Criminal Justice Training Council and later appointed to the Committee for Law Enforcement Training and Education by Governor Romney.

Mr. O'Laughlin is a certified expert in the Use of Force and is a recognized consultant in that discipline.

Litigation Support: David W. O'Laughlin provides expert incident analysis and testifies in both court and deposition in matters of police use of force, up to and including deadly force. His services are available to police agencies, insurance companies, and attorneys representing both plaintiff and defendant.

Areas of Expertise:

Use of Force Deadly Force

Law Enforcement Training Police Practices & Procedures

View David O'Laughlin's Consulting Profile.

Michael Levine is one of the most decorated Supervisory Agents in the history of the Drug Enforcement Administration. A US Law Enforcement Procedure Expert, Mr. Levine has many decades of courtroom experience (civil & criminal) as a Trial consultant and Expert Witness, including 25 years of service with DEA, Customs, BATF, and the IRS Criminal Investigations Division. Mr. Levine's supervisory and other law enforcement experience includes being in command of task force units combining officers of FBI, BATF, IRS, Customs, NYPD and other police agencies, service as an Internal Affairs supervisory investigator, a senior inspector with the Department of Justice OPR, Office of Professional Responsibility, and Director of a sheriffs department drug bureau. 

Mr. Levine, during his decades of trial experience, both as a senior law enforcement officer including the past 30 years as a professional trial consultant, has qualified as an expert witness for both prosecution and plaintiff as well defense, in federal and state courts including 19 states, Puerto Rico and 8 foreign nations. He offers full trial consulting and investigative services in both criminal and civil matters as follows: Expert Witness File Review and Strategy Assessment; Case Particular Design of Cross-Examination "menus"; Investigative, Technical and Research Support; Expert Witness Report and/or Affidavit Preparation. Utilizing his extensive experience as a Supervisory Internal Affairs Investigator, he can also identify the elements of probable cause indicative of false reporting, cover-up, and the concealment of Brady materials. Since the year 2007 he has been retained by the Atlanta and DeKalb County District Attorneys Offices, to conduct police-involved shooting reviews and as such has testified before criminal grand juries leading to the indictment and conviction of law enforcement/violators. 

Mr. Levine specializes in full trial consulting services and expert testimony in criminal and civil matters and has testified as an expert in the following areas of expertise:

Use of Force - Reasonableness, Excessive, Deadly Undercover Operations Police Misconduct Informant Recruitment, Management, Corroboration Investigative Procedures, Interview Tactics Evidence Handling RICO Title Three Investigations / Electronic Eavesdropping Devices Asset Seizures Narcotic / Drug Enforcement Undercover Use of Informants to Entrap

Internet Drug Trafficking Blind Mule Defense Undercover for Internet Child Predatory Practices Undercover Entrapment (all areas) Smuggling Money laundering International drug trafficking practices and mores Police Misconduct Official Corruption Reasonableness of Arrest Tactics, Raids, Search Warrants Cooperation Deals

A listing of his cases may be found on his website www.policetrialexpert.com.

Michael Levine is the only US law enforcement expert ever admitted to testify before a Japanese court, (Japan v Goldstein) and used the Blind Mule Defense, which resulted in an acquittal. He is a best-selling author, media consultant, lecturer and police instructor with extensive experience as court-qualified expert witness and trial consultant in civil and criminal matters.

Since leaving the Department of Justice, he has been retained in excess of 500 occasions as a trial consultant/expert witness throughout the United States, Canada, England and Japan. Mr. Levine has also remained active as a police instructor in the US, Canada and Australia. In January of 2008, his police instructional manual "Undercover Tactics and Informant Handling" previously written for the Department of Justice, was published by the New York State Department of Justice Services and utilized as an instructional manual for New York State law-enforcement. The manual was subsequently edited and republished by the US State Department for the instruction of Brazilian Federal Police which was conducted by Mr. Levine and his team of US-based experts. The manual was subsequently republished via academia.edu from where it is now among the top .05% of Global downloads by police agencies, attorneys and researchers.

 View Michael Levine's Consulting Profile.

Timothy A. Dimoff, CPP, founder and president of SACS Consulting & Investigative Services, Inc. a leading security consulting firm, has over 40 years of experience in Law Enforcement and Security matters for both the public and private sectors. He is multi-certified in the security field and is considered one of the nation's leading authorities on negligent security procedures; security & vulnerability issues; police procedures and operations including use of force; high-risk workplace and human resource issues; narcotics investigations and enforcement. 

Mr. Dimoff 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.

Litigation Support - Mr. Dimoff has over 20 years of experience in testifying and consulting as an expert witness in over 500 cases and trials for both the plaintiff and the defense sides. His expert witness experience includes law enforcement procedures, security negligence of business or physical premises, human resources issues, meeting standards of practice in hiring and termination, employment practices, proper documentation, training, supervision, policies and procedures, harassment, discrimination, internal investigations, threats and excessive use of force.

Mr. Dimoff is a renowned speaker, trainer, and author who has offered expert commentary to national media including Dateline, NBC, CNN, The Chicago Tribune, The New York Times, The LA Times, The Washington Post, and The Wall Street Journal.  He is the author of four books, including How to Recognize Substance Abuse, The YOU in Business, and Life Rage, a chilling examination of societal rage and safeguards against it.

Mr. Dimoff holds a Bachelor of Science Degree in Sociology with an emphasis in Criminology from Denison University.

Areas of Expertise: 

Security Policies and Procedures Use of Force Human Resource Issues including Hiring and Firing Terminated Employee Risks, and Policies Police Procedures Physical Security  Assessments

Negligence Determinations for Businesses Houses of Worship, and Schools High Threat and Security Vulnerability Analysis Drugs and Substance Abuse Issues Lone Wolf , Active Shooters, and Hate Groups Law Enforcement Procedures and Operations

View Timoth A. Dimoff's Consulting Profile.

Dr. James F. Pastor, Ph.D, JD, CPP, is a multifaceted security expert with a rich background that spans security, policing, legal, public policy, and academia. His career began as a tactical officer in Gang Crime Enforcement with the Chicago Police Department, where he gained hands-on experience in one of the nation's most dynamic policing environments. This real-world foundation laid the groundwork for his extensive expertise in security and public safety.

Transitioning from the streets to the courtroom, Dr. Pastor built a distinguished legal career representing police unions, security guard firms, and electronic security companies. His legal acumen allows him to provide comprehensive counsel and advice on various security and public safety matters.

With a doctorate in Public Policy Analysis, Dr. Pastor has a nuanced understanding of how policies shape incentives and influence human behavior. This academic insight, combined with his practical experience, gives him a unique perspective on risk and liability, making him a sought-after advisor for corporations and communities aiming to prevent crime or mitigate its impacts.

Dr. Pastor's "security sense" is a blend of street-level policing intuition, academic scholarship, legal expertise, and technical know-how, further enhanced by a deep understanding of geopolitical trends. His decades-long study of terrorism and extremism also informs his work, allowing him to contribute valuable insights and assessments for your case.

Areas of Expertise:

Security Law Premises Liability Private Policing Foreseeability & Lawlessness Terrorism & Extremism Search & Seizure Policies / Procedures Security Technology Search & Seizure

Risk & Liability Inadequate / Negligent Security Policies & Use of Force Church Security  Public Safety Disciplinary Methods & Management Security Monitoring

Litigation Support - Dr. Pastor is a highly regarded expert witness with experience in policing, security, public safety, and legal issues relating to these. His depth and breathe of experience is substantive, yet practical. Bringing a unique background, along with credentials and skills, including participating in over 700 prior depositions, has proven to be very effective in his expert witness role.

Dr. Pastor has over 20 years of university teaching experience in security, public safety, and policing, including Northwestern University- Center for Public Safety and the International Law Enforcement Academy. 

Author of four books on security and public safety, plus chapter on Private Policing in ASIS International's Protection of Assets Manual and created Privatization of Policing Bibliography for Oxford University Press, both being comprehensive, substantive works relating to Private Policing.

View SecureLaw LLC's Consulting Profile.