John S. Hollywood

John S. Hollywood
Senior Operations Researcher
Washington Office


Ph.D. in operations research, MIT; B.S. in applied mathematics, MIT


John S. Hollywood (he/him) is a senior operations researcher at the RAND Corporation, where he conducts decision science research in the areas of criminal justice, homeland security, and information technology. He is an internationally-recognized expert on the use of machine learning in policing and criminal justice technology more broadly. He recently led projects including: development of a web resource on preventing and protecting against mass attacks; a web resource on top policing strategies and how to implement them; evaluating ICE's body worn camera pilot; a technology evaluation at a major active shooting exercise in Grand Central Terminal; numerous panels to determine science and technology-related needs for the Departments of Justice and Homeland Security; and multi-year evaluations of predictive policing experiments and real-time crime operations centers. He previously served as the manager of the RAND Center for Quality Policing and Director of the NLECTC Information and Geospatial Technologies Center. He has written opinion pieces on best practices in counterterrorism and law enforcement technology for The Hill, United Press InternationalCNN, The Charlotte Observer, Crane's Chicago Business, Government Technology, and ORMS Today.  

Recent Projects

  • Improving the Understanding of Mass Shooting Plots
  • Priority Criminal Justice Needs Initiative
  • Predictive Policing Experiment Evaluations
  • Criminal Justice Technology Forecasting Group
  • Information and Geospatial Technologies Center

Selected Publications

Hollywood, John S., Richard H. Donohue, Tara Richardson, Andrew Lauland, Cliff Karchmer, Jordan R. Reimer, Thomas Edward Goode, Dulani Woods, Pauline Moore, Patricia A. Stapleton, Erik E. Mueller, Mark Pope, and Tom Scott, Mass Attacks Defense Toolkit, RAND Corporation (TL-A1613-1), 2022

Hollywood, John S., Andrew Lauland, Dulani Woods, Kenneth N. McKay, and Yingzi Zhang, Better Policing Toolkit, RAND Corporation (TL-261-RC), 2018

Hollywood, John S., Brian A. Jackson, Annie Brothers, Mark Barrett, Dulani Woods, and Michael J. D. Vermeer, A Database of Criminal Justice Needs for Innovation: Requirements for Developers and Funders: User Guide, RAND Corporation (TL-352-NIJ), 2020

Hollywood, John S., Kenneth N. McKay, Dulani Woods, and Denis Agniel, Real-Time Crime Centers in Chicago: Evaluation of the Chicago Police Department's Strategic Decision Support Centers, RAND Corporation (RR-3242-BJA), 2019

Hollywood, John S., Dulani Woods, Sean E. Goodison, Andrew Lauland, Lisa Wagner, Thomas J. Wilson, and Brian A. Jackson, Fostering Innovation in U.S. Law Enforcement: Identifying High-Priority Technology and Other Needs for Improving Law Enforcement Operations and Outcomes, RAND Corporation (RR-1814-NIJ), 2017

Hollywood, John S., Dulani Woods, Andrew Lauland, Brian A. Jackson, and Richard Silberglitt, Addressing Emerging Trends to Support the Future of Criminal Justice: Findings of the Criminal Justice Technology Forecasting Group, RAND Corporation (RR-1987-BJA), 2018

Hollywood, John S., Dulani Woods, Richard Silberglitt, and Brian A. Jackson, Using Future Internet Technologies to Strengthen Criminal Justice, RAND Corporation (RR-928-NIJ), 2015

Perry, Walter L., Brian McInnis, Carter C. Price, Susan Smith, and John S. Hollywood, Predictive Policing: The Role of Crime Forecasting in Law Enforcement Operations, RAND Corporation (RR-233-NIJ), 2013

Honors & Awards

  • Karl Taylor Compton Prize, Massachusetts Institute of Technology
  • Bronze Medal Award, RAND Corporation
  • Silver Patrick Henry Award, Military Order of the World Wars


  • Crime and Violence Prevention

    A Toolkit for Avoiding Mass Shootings

    RAND has developed an online educational toolkit to provide practical strategies and guidance on deterring, mitigating, and responding to mass attacks. Research highlights three top ways to mitigate and/or respond to mass attacks right now: through proactive prevention, relentless follow-up, and diligent preparation and training.

    Jul 14, 2022

    United Press International

  • Police-Community Relations

    Police Officers: This Article Will Make You Better at Combatting Misinformation

    By deliberately addressing misinformation, police officers can promote safe and healthy behaviors among those in their communities. The actions they take to combat misinformation and improve protections in their communities are a critical part of the collective campaign to end the pandemic and help people return to their normal lives.

    Aug 24, 2020


  • Law Enforcement

    How to Transform Policing

    The killing of George Floyd and other abuses of power have brought about growing calls to alter how we conduct public safety and, more broadly, criminal justice in America. Evidence shows there is substantial room for improvement.

    Jul 9, 2020

    The Hill

  • Police-Community Relations

    Protests and Police Reform: Q&A with RAND Experts

    After the killing of George Floyd by police in Minneapolis and subsequent nationwide protests, the United States is seeing urgent action to reform policing. Here are insights from four RAND researchers who work on policing and community safety issues.

    Jun 18, 2020

  • Crime and Violence Prevention

    No Need to Wait for Congress to Address Mass Shootings

    After three mass shootings in the span of a week left 53 wounded and 34 dead, pressure is mounting on Congress to respond with legislation to restrict access to guns and ammunition. But there is no need to wait for new laws. There are steps that can be taken immediately that evidence suggests could help prevent attacks or reduce the death toll from them.

    Aug 23, 2019

    The Hill

  • Crime and Violence Prevention

    Suppressing Motivation, Legitimacy Can Help Avoid Political Violence

    The threat of political violence is real and growing, but there are concrete things that can be done to reduce the risks. Solutions might include repeated statements from leaders that fear of people because of their ethnicity, religion, party, or social grouping is wrong and that violence against them is illegitimate and against American values.

    Nov 28, 2018

    United Press International

  • Law Enforcement

    CPD's 'Heat List' and the Dilemma of Predictive Policing

    Predictive policing — the use of computer models to identify areas or people at greater risk of being involved in a serious crime — is yielding results for police. How authorities plan to respond to the data is key.

    Sep 21, 2016

    Crain's Chicago Business

  • Crime and Violence Prevention

    Predictive Policing: An Effective Tool, but Not a Crystal Ball

    Predictive policing is not an end-all solution, but rather a tool that must be used in concert with other policing resources as part of a broader anti-crime effort. Used properly, predictive policing can predict the risk of future events, but not the events themselves.

    Nov 15, 2013

    Government Technology

  • Terrorist Organizations

    Can You Help Stop Terror Plots?

    Of the plots foiled in the last 10 years on U.S. soil, the would-be terrorists came from many different ethnic groups. We know of no cases where ethnic profiling helped stop a terrorist plot, write John Hollywood and Kevin J. Strom.

    May 10, 2011


  • Law Enforcement

    Alert Public and Cops Foiled the Most Terrorism Schemes

    The recent foiled plot by a naturalized citizen to bomb Washington-area metro stations has national counterterrorism officials warning that the U.S. faces not only risks from abroad, but also homegrown terrorism, write John S. Hollywood and Kevin J. Strom.

    Nov 24, 2010

    The Charlotte Observer