Our Research

Force Science’s Division of Research is dedicated to scientifically determining and fully understanding the actual physical and psychological dynamics of force encounters through research of human behaviors during rapidly unfolding, high-stress confrontations. Our groundbreaking reproducible studies address real problems law enforcement officers face on the street today. For more details and to download articles, please review our findings below.

Peer-Reviewed Articles

2018 - 2019

Training and Safety: Potentially Lethal Blue-on-Blue Encounters

By Dawn A. O’Neill, William R. Spence, William J. Lewinski & Emily J. Novak

Functional Behavior Assessment of the Unintentional Discharge of Firearms in Law Enforcement

By John O'Neill

Police Academy Training, Performance, and Learning

By John O’Neill, Dawn A. O’Neill, Katelyn Weed, Mark E. Hartman, William Spence, William J. Lewinski

Further Analysis of the Unintentional Discharge of Firearms in Law Enforcement

By John O’Neill, Mark E. Hartman, Dawn A. O’Neill, & William J. Lewinski
Law Enforcement Executive Forum

Law Enforcement Memory of Stressful Events: Recall Accuracy as a Function of Detail Type

By Mark E. Hartman, Dawn A. O’Neill, John O'Neill, & William J. Lewinski


Journal of Police and Criminal Psychology

Protective Vests in Law Enforcement: A Pilot Survey of Public Perceptions

By John O’Neill, Steven A. Swenson, Emily Stark, Dawn A. O’Neill, & William J. Lewinski

Toward a Taxonomy of the Unintentional Discharge of Firearms in Law Enforcement

By John O’Neill, Dawn A. O’Neill, & William J. Lewinski


Law Enforcement Executive Forum

The Speed of a Prone Subject

By William J. Lewinski, Dawn A. Seefeldt, Christina Redmann, Madeleine Gonin, Scott Sargent, Jennifer L. Dysterheft, & Patricia Thiem
Law and Human Behavior

Memory and the Operational Witness: Police Officer Recall of Firearms Encounters as a Function of Active Response Role

By Lorraine Hope, David Blocksidge, Fiona Gabbert, James D. Sauer, William J. Lewinski, Arta Mirashi, & Emel Atuk


International Journal of Police Science and Management

The Real Risks During Deadly Police Shootouts: Accuracy of the Naive Shooter

By William J. Lewinski, Ron Avery, Jennifer L. Dysterheft, Nathan D. Dicks, & Jacob M. Bushey

The Influence of Officer Equipment and Protection on Short Sprinting Performance

By William J. Lewinski, Jennifer L. Dysterheft, Nathan D. Dicks, & Robert W. Pettitt
Law Enforcement Executive Forum

Ambushes Leading Cause of Officer Fatalities – When Every Second Counts: Analysis of Officer Movement from Trained Ready Tactical Positions

By William J. Lewinski, Jennifer L. Dysterheft, Jacob M. Bushey, Nathan D. Dicks


Police Practice and Research: An International Journal

Police Officers’ Actual vs. Recalled Path of Travel in Response to a Threatening Traffic Stop Scenario

By William J. Lewinski, Jennifer L. Dysterheft, Matthew M. Priem, & Robert W. Pettitt
Law Enforcement Executive Forum

Police Officer Reaction Time to Start and Stop Shooting: The Influence of Decision-Making and Pattern Recognition

By William J. Lewinski, William B. Hudson, & Jennifer L. Dysterheft


The Influence of Start Position, Initial Step Type, and Usage of a Focal Point on Sprinting Performance

By William J. Lewinski, Jennifer L. Dysterheft, Dawn A. Seefeldt, & Robert W. Pettitt
Law Enforcement Executive Forum

The Influence of Officer Positioning on Movement during a Threatening Traffic Stop Scenario

By William J. Lewinski, Jennifer L. Dysterheft, Dawn A. Seefeldt, & Robert W. Pettitt


Psychological Science

Witnesses in Action: The Effect of Physical Exertion on Recall and Recognition

By Lorraine Hope, William J. Lewinski, Justin Dixon, David Blocksidge, & Fiona Gabbert
Human Movement Science

Performing Under Pressure: Gaze Control, Decision Making, and Shooting Performance of Elite and Rookie Police Officers

By Joan N. Vickers & William J. Lewinski


Fired Cartridge Case Ejection Patterns from Semi-Automatic Firearms

By William J. Lewinski, William B. Hudson, David Karwoski, & Christa J. Redmann


Law Enforcement Executive Forum

New Developments in Understanding the Behavioral Science Factors in the ‘Stop Shooting’ Response

By William J. Lewinski & Christa Redmann


Law Enforcement Executive Forum

The Attention Study: A Study on the Presence of Selective Attention in Firearms Officers

By William J. Lewinski
Police Quarterly

Pursuit Driver Training Improves Memory for Skill-Based Information

By Jonathan W. Page, Corey M. Thibeault, Kasee F. Page, William J. Lewinski
Law Enforcement Executive Forum

A Survey of the Research on Human Factors Related to Lethal Force Encounters: Implications for Law Enforcement Training, Tactics, and Testimony

By Audrey Honig & William J. Lewinski
Law Enforcement Executive Forum

Command Sequence in Police Encounters: Searching for a Linguistic Fingerprint

By Julie Vandermay, Daniel Houlihan, Liesa A. Klein, William J. Lewinski, Jeffrey Buchanan
Law Enforcement Executive Forum

Command Types Use in Police Encounters

Emily Schwarzkopf, Daniel Houlihan, Kari Kolb, William J. Lewinski, Jeffrey Buchanan, & Angela Christenson


  • Privacy Policy

Privacy Policy

Effective date: January 06, 2019

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