Meet the LEADS Scholarship Recipients

Stuart Greer is a Captain with the Morristown (NJ) Bureau of Police and serves as the Commanding Officer of the Administrative Division. In this role, his responsibilities include research & planning, data analysis, compstat, police training, social media, police records, and public information. He is a co-founder and board member of the American Society of Evidence-Based Policing and has served as a LEADS Scholar at the National Institute of Justice where he contributed to the advancement of research in the development of policing tactics and strategies.

Captain Greer is a certified instructor with the New Jersey Police Training Commission and teaches both recruit and in-service classes.  He is an executive Policing Fellow at the Police Foundation in Washington, D.C. and has worked on projects designed to meet the goal of advancing Policing through innovation and science.  He has served as a faculty instructor with the Virginia Center for Policing Innovation teaching Police Commanders evidence-based approaches to reducing homicide and gun violence. 

He received a B.A. in Justice Studies from the College of Saint Elizabeth in Morristown, N.J., a Master of Studies (MSt) in Applied Criminology and Police Management at the University of Cambridge in the United Kingdom, and an Executive Master of Public Administrator program at the Robert F. Wagner Graduate School of Public Service at New York University.

The KHN Police and Security Department has over 100 sworn police officers and 45 security/civilian employees and provides police and security services to 13 hospitals and medical facilities in a six-county region in southwest Ohio. Chief DePew is a graduate of the 264th class of the FBI National Academy, the Ohio Association of Chiefs of Police (OACP) Certified Law Enforcement Executive program, the OACP's Police Executive Leadership College, and the Northwestern University School of Police Staff and Command. Chief DePew holds a bachelor's in criminal justice from Ohio University, a master's in criminal justice administration from Miami University, and is currently working on his MBA from Louisiana State University. Chief DePew is also an adjunct professor at Sinclair Community College. He has previously conducted research on drug overdose data collection methods and is currently part of a team researching cardiovascular disease risk factors in police officers. As a LEADS scholar, Chief DePew is honored to have the opportunity to work with other scholars and contribute to research to aid the advancement of the criminal justice field.

Lieutenant Myron Holubiak has served the community of Tucson, Arizona since 1998. He is assigned to the Analysis section, which creates data-driven analyses of patrol deployments, criminal intelligence, and other policy, strategic, and operational metrics. Lieutenant Holubiak oversees the CompStat and Research and Analysis units, and the Tucson Real-time Analytical Crime Center (TRACC), which provides tactical intelligence to responding operations units through ad hoc research. Previously, he supervised Audit and Best Practices, which analyzes department-member uses of force and researches industry standards, guiding the design of policies and operational practices. He is a graduate of the University of Arizona.

Edward Tjaden began his position as Chief of Police at the York Police Department in October of 2017. Prior to that, he spent the previous 18 years with the Gering Nebraska and Alliance Nebraska Police Departments, where he served as an officer, sergeant, instructor, narcotics investigator in a multi-jurisdictional High Intensity Drug Traffic Area task force, and Lieutenant/Operations Commander. He is a 2016 graduate of Northwestern University's School of Police Staff and Command and obtained his bachelor's in criminal justice administration in 2017. His experiences exemplify the "jack of all trades" description often found in rural law enforcement, including patrol, investigations, instruction, drafting and implementing policy, conducting forensic child interviews, planning large, high-risk events, supervising hiring processes, supervising training, and writing and administering grants. He has focused his studies on expanding the understanding that rural law enforcement officers, leaders, and agencies face both unique and typical policing challenges, and believes in addressing those challenges with a combination of academic and practical efforts.

Sgt. Jeffery Egge currently serves as supervisor of Strategic Analysis for the Minneapolis Police Department (MPD) and specializes in the study of homicide, gang crime, hot spots, and research translation. With MPD, Sgt. Egge has worked in CompStat, Organized Crime, Homicide, and Patrol. Sgt. Egge holds a master's degree in police leadership, administration, and training from the University of St. Thomas, and a bachelor's degree in organizational management from Concordia University. He was a Senior Research Fellow at the Police Executive Research Forum (PERF) and has contributed to publications on crime analysis, research and planning, and predictive policing. Jeff has presented at national symposia for the Center for Evidence Based Crime Policy, Police Executive Research Forum, and the International Association of Crime Analysts. Prior to joining the MPD, he was an Investigations and Training Specialist and Loss Prevention Manager for Dayton Hudson (now Target Corp).

Dr. Obed Magny, CEO of Magny Leadership and former Sacramento Police Department officer with nearly two decades of experience. Throughout his career, Dr. Magny has worked in a variety of units, including Patrol, School Resource Officer, Professional Standards Unit, and Crime Suppression Unit. He holds a Bachelor’s Degree in Criminal Justice and Sociology, a Master’s Degree in Emergency Services Administration, and a Doctorate Degree in Organizational Leadership. His areas of expertise include motivation, job satisfaction, organizational leadership, and social/emotional intelligence. In addition to his role as a consultant, Dr. Magny is also a Policing Fellow at the National Policing Institute and a founding member of the American Society of Evidence-Based Policing. He is a strong advocate for utilizing scientific research in the field of policing.

Sergeant Johnson has served the Town of Darien (CT) for the last sixteen years. During his time as a detective sergeant, he leveraged research to increase his agency's investigative capacity by cross-training a subset of patrol officers to function as detectives. In his current role as a night shift supervisor, he lead a multi-site randomized controlled trial to test the relationship between enhanced patrol vehicle lighting and crime. Sgt. Johnson holds a bachelor's degree in sociology from Geneva College, a master's degree in justice administration from Western Connecticut State University, a master's degree in criminal justice from John Jay College, and a doctorate in criminal justice from the City University of New York Graduate Center. His dissertation research focused on the role of relational networks in diffusing law enforcement innovations.

Major Stiver was an invited presenter at an NIJ-sponsored event.

Major Stiver is the commander of the Central Patrol Division at the Dayton (OH) Police Department. She has also served as the commander of the Central Investigations Bureau and in both East and West Patrol Divisions. She holds a master's degree in criminal justice from the University of Cincinnati. She is also a graduate of the Police Executive Leadership College and Certified Law Enforcement Executive course. Major Stiver is an adjunct professor at Wright State University and teaches graduate courses in criminological theory. In addition to a current research project on police intervention in infant mortality cases, Major Stiver led a foot patrol evaluation with the University of Cincinnati, quantitative analysis on patrol officer exposure to secondary trauma and is working on a volunteer hot spot patrol project, photo enforcement compliance and a sentinel event crash reduction multi-disciplinary team review.

The University of Illinois Police Department is a fully sworn department that serves a community of over 45,000 students and 6,000 faculty and staff members. Lieutenant Fiesta currently serves as the administrative bureau commander, overseeing the crime prevention, training, telecommunications, and records units. The University is a rich environment for research and educational opportunities; Fiesta connects researchers from various disciplines to the department. The results of the research help the department develop evidenced-based training and practices. Lieutenant Fiesta holds a bachelor's degree in rhetoric with a minor in Russian from the University of Illinois and a master's degree in organizational leadership from Gonzaga University.

Rachel Tolber was appointed Chief of Police of the Redlands Police Department on June 12, 2023. The Redlands Police Department is a full-service, municipal police agency that prides itself on its strong partnership with the community and high levels of public safety services.

Chief Tolber began her law enforcement journey in 1997 when she was hired by the Redlands Police Department as an undergraduate student intern performing as a research assistant. In 1998, she became a police officer, and since then has served the department in a variety of positions and operational, tactical, investigative, and training assignments. Chief Tolber possesses a bachelor’s degree in psychology and sociology from the University of Redlands, and she holds a master’s degree in criminology, law and society from the University of California, Irvine. She also earned a master’s degree in applied criminology from the University of Cambridge in the United Kingdom. In 2021, she completed the Commission on Peace Officer Standards and Training Command College. Chief Tolber is a founding member and current Treasurer of the American Society of Evidence-Based Policing and was recently selected to serve on the IACP’s Research Advisory Committee.

Greg Stewart is a sergeant with the Portland, Oregon, Police Bureau (PPB). His 20 years of service include being a patrol officer, patrol sergeant, and investigative sergeant. He supervised the Bureau's Domestic Violence Reduction Unit and implemented an automated actuarial risk assessment system for people accused of (or convicted for) domestic violence offenses. He is currently the sergeant of the PPB's Crime Analysis Unit. His assignments include developing patrol strategies aimed at reducing crime while improving the relationship between police and community members and supervising PPB non-sworn crime analysts. In this capacity, he assists the PPB in operationalizing existing police-related research as well as conducting research on emerging issues.

Chief Clary was named Police Chief of the city of Bellevue, Nebraska, in August 2020. 

Prior to his current position, Ken Clary served as an Area Commander for the Iowa State Patrol (ISP), which included the oversight of four patrol districts including approximately one quarter of the State of Iowa. During his time as a Commander, Captain Clary held a variety of positions including CALEA Accreditation Coordinator for the Department of Public Safety (DPS) and Assistant Field Operations for the ISP. In these positions, he utilized research and worked with numerous law enforcement agencies to determine best practices in hiring and promotional processes, as well as resource allocation. He worked directly with the Iowa Governor's Traffic Safety Bureau (GTSB) to implement statewide police training and public education programs to combat drowsy driving. Subsequently, in June, Iowa GTSB and DPS hosted the first of its kind National Drowsy Driving Summit with the National Highway Traffic Safety Administration (NHTSA).

Captain Roman currently commands the Criminal Investigations Bureau (CIB). CIB consists of the following units: Homicide, Major Crimes, Robbery, Special Victims, Youth Aid, Auto Squad, Crime Scene, Ballistics, Criminal Intelligence Unit, Real Time Crime Center, and the Narcotics Unit. Roman earned a master's degree in public administration from Rutgers University.

Newark Police is currently operating under a Federal Consent Decree. Roman is interested in research on police perceptions of legitimacy and procedural justice. Extant literature thoroughly explores citizens' perceptions of legitimacy, but there is a dearth of research regarding officers' perception and factors that influence those perceptions. Understanding both officers' and citizens' perceptions on these topics can have broad applications when implementing recommendations from the President's Task Force on 21st Century Policing.

After joining the department in January 1999, Major Stewart spent the early part of his career in patrol and served as a field training officer, firearms instructor, and control and defensive tactics instructor. He spent several years in Recruiting before being promoted to the rank of lieutenant in 2009. He spent four years in Operations before being assigned to the Planning and Research Unit. During this assignment, Daniel surveyed other law enforcement agencies and conducted thorough research on topics that benefited the department, such as vehicle equipment and early intervention systems. Additionally, he helped to develop written directives on critical projects such as body-worn cameras and Naloxone. He was promoted to the rank of Captain in 2015. As Captain, he spent time in Operations as a Shift Commander and in Investigations as the Property Crimes Commander. He spent time as the Public Information Officer for the department until his promotion to Major in June 2021. He oversees the Uniform Support Division which encompasses Airport Police, Air Support, the Bricktown Entertainment District, Emergency Management, the Emergency Response Team, the Fatality Traffic Investigations Unit, Hit and Run, the Homeless Outreach Team, Solo Motors and Special Events.

Sergeant Williams is the supervisor over the DUI Enforcement Unit for the Metropolitan Nashville Police Department. During his time with the department, he has served as an officer in patrol, Crash Investigator and Reconstructionist, and patrol supervisor. In his current position, Sergeant Williams is responsible for analyzing crash and arrest data pertaining to driver impairment and develops intervention strategies. He also supervises the investigation of crashes involving life-threatening injuries and fatalities. Sergeant Williams has a bachelor's degree in sociology from the University of Kentucky and a master's degree in Public Policy and Administration from Northwestern University. For his master's thesis, Sergeant Williams researched the use and effectiveness of predictive analytics to inform enforcement strategies aimed at reducing traffic-related deaths and offenses.

Lieutenant Freidline is currently assigned to the Patrol Division of the Riley County (KS) Police Department. Within this division, Lieutenant Freidline uses data and intelligence to increase the effectiveness of their officers through using hot spot policing to try and deter and prevent crime with our intelligence unit providing a minimum of weekly updates about crime trends. As a LEADS scholar, Lieutenant Freidline has gained a new network of mid-level supervisors to communicate with in reference to solving crime problems and sharing ideas. She is also appreciative of the wealth of knowledge available through NIJ and their website, who are working just as hard to progress law enforcement in a positive direction.

Lieutenant Nelson is currently in charge of the Professional Standards and Internal Affairs Office within the Madison (WI) Police Department, a department of approximately 450 commissioned and 150 civilian employees. Having never been to the IACP Conference previously, Lieutenant Nelson came away from the event very impressed; with the major take away being the importance of using data and research to make departments more efficient. After the conference, Lieutenant Nelson contacted an academic researcher at a college in Wisconsin and explained his plan to implement a domestic violence initiative that targets persons convicted of a crime. Lieutenant Nelson and the researcher plan on beginning research and discussions in January 2016.

Lieutenant Victorian is assigned to the Special Victims Division Ð Child Sexual Abuse Unit within the Houston (TX) Police Department. In this position, Lieutenant Victorian is responsible for managing the day-to-day operations of personnel investigating sexual offenses involving child victims and children who have committed serious offenses. Lieutenant Victorian earned a doctor of philosophy degree from Texas Southern University in Administration of Justice. Her research interests include police leadership, police-community relations, and police ethics. As a result of her experience thus far as a 2015 LEADS scholar, Sheryl understands how critical her role is as both a law enforcement officer and scholar in positively affecting policy through research.

Shon F. Barnes was hired as Madison Police Department's Chief of Police by the Police and Fire Commission of Madison, Wisconsin in December of 2020. He was previously the Director of Training and Professional Development for the Civilian Office of Police Accountability in Chicago, Illinois. Chief Barnes was the Deputy Chief of Police in Salisbury, North Carolina (2017-2020) and a Captain with the Greensboro Police Department (NC) where he began his career as a patrol officer in the fall of 2000. Chief Barnes was selected by the National Institute of Justice, as a 2015 LEADS Scholar, for using innovative technology to reduce crime. Chief Barnes is a council member on the National Police Foundation's Council on Policing Reforms and Race.

Chief Barnes attended Elizabeth City State University (Elizabeth City, North Carolina) where he received a B.A. Degree in History/Pre-Law, and the University of Cincinnati (Cincinnati, Ohio) where he received a master's degree in Criminal Justice. He has earned a Ph.D. in Leadership Studies from North Carolina Agricultural and Technical State University (Greensboro, North Carolina).​

Jason Potts leads the City of Las Vegas Department of Public Safety, which provides the public with law enforcement and detention services. This department manages the city jail and includes the deputy city marshals (who provide public safety at city parks and facilities), as well as animal protection services.

Potts started his policing career with the Vallejo Police Department in Northern California, where he moved up the ranks to captain, leading the Operations Bureau, Investigations Bureau, and Emergency Services Unit. Before his career in municipal policing, he worked for U.S. Customs and Border Protection as a border patrol agent.

During his career at the Vallejo Police Department, Potts worked in various capacities, including patrol, crime suppression, investigations, SWAT, field training, internal affairs, the FBI’s Solano County Violent Gang Task Force and the Oakland Drug Enforcement Administration Task Force. He also is a military reserve special agent with the Coast Guard Investigative Service.

Potts earned a master’s degree in Criminology, Law, and Society from the University of California, Irvine. He has a bachelor’s degree in Management from St. Mary’s College in California. He holds a certificate of completion from the Police Executive Research Forum, Senior Management Institute of Police. He is a graduate of the California Peace Officers Standards and Training Command College, Executive Development Course and is a National Institute of Justice Law Enforcement Advancing Data and Science Program alumni with the U.S. Department of Justice.

An advocate for evidence-based policing, Potts serves on the Executive Board for the American Society of Evidence-Based Policing, is a member of the Council on Criminal Justice (violent crime working group), and is a National Policing Institute fellow. He has been a strong proponent of officer safety and wellness, data-driven patrol deployments, community engagement, practitioner-led research, innovative practices and technology. In June of 2019, he was recognized nationally at George Mason University (evidence-based policing hall of fame) for his collective efforts in advocating and implementing evidence-based policing — both nationally and in his department.

As a sergeant of Deputy Superintendent Rannie Mushatt's staff, Sergeant Powell's main role is a liaison between the Investigation and Support Bureau and the Public Integrity Bureau. Sergeant Powell's responsibilities include assigning, tracking and monitoring all internal investigations. She assists in the conduct of disciplinary hearings, preparing vital notifications and pertinent paperwork. She also review's staffing requirements, court attendance, policy compliance and training. In addition to those duties, Sergeant Powell conducts quarterly reviews of sex crime cases per the consent decree. Sergeant Potts believes that participating in the LEADS scholar program has been truly an amazing experience. She has gained a new perspective about partnerships related to evidence-based approaches in leadership roles and the need for effective community policing. She was honored to interact with OJP Assistant Attorney General Karol Mason and NIJ Director Dr. Nancy Rodriquez at the IACP Conference, and she looks forward to gaining knowledge and experience in continuing participation in the LEADS scholar program.

A native of Dallas, TX, Tarrick McGuire began a career in public service with the Arlington (TX) Police Department in 2003. During his tenure, he has served in multiple positions before being appointed to Police Chief in 2024. As a nationally recognized public speaker and published author, Chief McGuire has been a leading authority on community police relations, police pattern and practice, evidence-based policing, and public policy. In 2020, he was appointed to the Council on Police Reform and Race by the National Policing Institute and was inducted into the Evidence-Based Policing Hall of Fame in 2022.

In 2016, Chief McGuire served as a law enforcement fellow with the International Association of Chiefs of Police contributing research and technical assistance to U.S. police departments on 21^st Century Policing in Washington, DC. During this period, Chief McGuire worked with the Department of Justice COPS Office and Obama Whitehouse Administration to improve policing practices, policy, and community-police relations nationally.

As a pracademic and change agent in policing, Chief McGuire was recognized by the IACP as one of the top 40 under 40 most progressive police leaders in the world. Although he has received many accolades, he is most proud of the Anthony L Sutin Department of Justice COPS Office Award for his work in community police relations and the Martin Luther King Jr. Award for Governmental Leadership.

Chief McGuire has earned a B.S. in Speech Communications from Oklahoma State University, a M.A. in Christian Leadership from Criswell College, and a Doctor of Public Administration from California Baptist University.

The Boston (MA) Police Department is a stalwart supporter of community policing strategies reflecting the values of the visitors and residents of Boston. As the Registrar of the Police Academy, Sergeant Detective Gary J. Eblan, M.A., has spent more than 16 of 26 years involved in the creation, design, implementation and execution of all facets of police training. The LEADS program has allowed him to expand his knowledge and resource base, and bring innovative ideas back to the Boston Police Department. Sergeant Detective Eblan now works as an investigator in the Bureau of Professional Standards, Anti-Corruption Division.

In addition to his role as a patrol lieutenant serving the Glendale Police Department, Lieutenant Brauer maintains a number of other responsibilities including: TRACS administrator/trainer, department grant writer, promotional assessor, accreditation manager, dispatch center liaison, TIME System TAC, and RMS administrator/trainer. While the LEADS program may be still in its infancy, Lieutenant Brauer has already received tremendous value from the program. He feels that the combination of NIJ, the IACP, and LEADS scholars has created a brain trust that will lead to research-based innovation, problem solving, and the continued professionalization of law enforcement. He is honored to have this opportunity to work with some of the most dedicated, insightful, and intelligent members of the law enforcement community.

Louis A. Molina assumed the role of Commissioner of the New York City Department of Correction on January 1, 2022. He is a veteran public safety leader with experience in military, law enforcement and corrections.

Commissioner Molina most recently served as Chief for the City of Las Vegas’ Department of Public Safety, where he oversaw the city’s jail, deputy city marshals and other public safety officials. In 2018, Commissioner Molina served as the first deputy commissioner for the Westchester County Department of Correction. From 2016-2017, he served as Chief Internal Monitor and Acting Assistant Commissioner of the Nunez Compliance unit at NYC DOC. He started his career in law enforcement as a police officer in the NYPD and rose to the rank of Detective.

Commissioner Molina has experience modernizing correctional systems through robust programming, building staff capacity and making strategic investments that improved conditions for staff and people in custody. He has also built strong partnerships with faith-based and community leaders, and nonprofit organizations working with justice-involved people.

Commissioner Molina is a native New Yorker from the Bronx and a decorated veteran of the U.S. Marine Corps. He received a Bachelor of Arts degree in Philosophy from Chaminade University, a Master of Public Administration from Marist College School of Management, a Master of Arts degree in Human Rights Studies from Columbia University Graduate School of Arts and Sciences, and studied abroad at the University of Cambridge, United Kingdom. He was a U.S. Department of Justice/Office of Justice Programs National Institute of Justice Scholar and most recently received a scholarship from the Harvard Business School Fund for Leadership & Innovation. Commissioner Molina also has completed the Harvard Business School General Management Program.