Ashley Englefield (

Ashley Englefield is a 15 year veteran of the Sacramento Police Department in Northern California. Prior to becoming a police officer Ashley was a United States Marine and obtained a Bachelors degree in Information Systems from California State University Sacramento.

After his time in the patrol division, Mr. Englefield joined the Detective division and worked as an investigator in the narcotics, gangs, and eventually the homicide division. Ashley is currently employed by the Placer County District Attorney’s Office.

Mr. Englefield is a graduate of the University of Cambridge (UK) completing a Masters degree in Criminology.


Heather Prince – Research Assistant

Heather Prince is currently a doctoral student in Criminology, Law and Society at George Mason University. She earned her M.S. in Criminology from the University of Pennsylvania in 2018, and her B.A. in Criminology from Albright College in 2017. She served as an intern for the Bureau of Alcohol, Tobacco, Firearms and Explosives in Philadelphia in 2018, and has been with ASEBP since May 2019.

Olivia Rudisill – Social Media Manager

Olivia Rudisill has serviced as the Marketing Director for ASEBP since August 2018. In this role, Olivia manages all social media platforms for the organization. She has prior experience working for the Sacramento (CA) Police Department and the Washington State Department of Corrections. Olivia holds a Bachelor of Arts in Criminal Justice from Washington State University.

Olivia Torres – Conference Manager 


Matthew Barter – Web Contributor 

Sergeant Matthew Barter has been with the Manchester (NH) Police Department for 11 years and is currently assigned to the patrol division. He was previously a Task Force Officer with the Bureau of Alcohol, Tobacco, Firearms, and Explosives and a Crime Analyst with the Crime Analysis Unit. Sergeant Barter has implemented numerous evidence-based policing practices within the agency, to include a data-driven hotspot policing concept and violent crime reduction initiatives. Recently, Sergeant Barter worked to integrate National Integrated Ballistic Information Network (NIBIN) technology and gun crime intelligence into strategic planning processes with law enforcement partners. He holds a master’s degree and bachelor’s degree in criminal justice and is interested in pursuing research regarding police patrol patterns as well as place-based crime. Sergeant Barter is a member of the 2018 NIJ and IACP LEADS Scholar program. In addition, he serves as a SWAT Officer and leads the Tactical Emergency Medical Support Unit.