The Blue Line Project

John Gabrielson

Problem-Oriented Policing. Real Solutions. Real Conversations.

  1. Jun 10

    Episode 12: Place Network Investigations Explained | Dr. Tamara Herold

    Dr. Herold discusses the origins of PNI, the criminological theories that support it, and why understanding the relationships between places can help law enforcement agencies more effectively identify, investigate, and reduce crime. The conversation explores how Place Network Investigations differ from traditional crime analysis, the role of data in successful implementation, and how agencies can avoid common mistakes when applying the methodology. The discussion also examines how PNI integrates with hotspot policing, Crime Prevention Through Environmental Design (CPTED), intelligence-led policing, and offender-focused investigations to create more effective crime reduction strategies. Whether you're a police executive, crime analyst, investigator, researcher, or public safety professional, this episode provides practical insights into one of the most innovative approaches to understanding and addressing crime today. 🔹 What are Place Network Investigations? 🔹 How do place networks influence crime? 🔹 Best practices for implementing PNI 🔹 Data-driven policing and crime analysis 🔹 Integrating PNI with hotspot policing and CPTED 🔹 The future of place-based crime reduction Links: POP Conference https://popcenter.asu.edu/content/2026-pop-conference?_gl=1*1pugklp*_gcl_au*MTY3Mzg2Nzc1MC4xNzgwNjIxNDQz*_ga*MTE0ODI5MTczNy4xNzgwNjIxNDQ0*_ga_TEHJR60KD9*czE3ODA4ODM2NzckbzIkZzEkdDE3ODA4ODM2NzckajYwJGwwJGg1OTY0MDgwOTc. #BlueLineProject #PlaceNetworkInvestigations #PNI #TamoraHerold #CrimeReduction #ProblemOrientedPolicing #POP #HotspotPolicing #CPTED #CrimeAnalysis #EnvironmentalCriminology #PoliceLeadership #LawEnforcement #ViolentCrimeReduction #IntelligenceLedPolicing #PublicSafety #Criminology #Investigations #PolicePodcast #CrimePrevention

  2. Mar 26

    Episode 7: Problem-Oriented Policing in Action: Targeting Crime Place Networks with Joel Vargas

    In this powerful episode of The Blue Line Project, we move beyond traditional hot-spot policing and dive deep into place network investigations (PNI) — a smarter, more effective way to understand and disrupt the invisible networks of locations that sustain violence and disorder in our communities. Join host John Gabrielson as he sits down with Joel Vargas, J.D., a veteran law enforcement leader with over 30 years of experience in community policing, intelligence analysis, and data-driven strategies. Joel has helped design programs that achieved dramatic violence reductions — including more than a 90% drop in violence in Bensenville, Illinois — while strengthening community trust. Together, they explore how problem-oriented policing (POP) and the SARA model (Scanning, Analysis, Response, Assessment) are supercharged by place network investigations. Discover how to identify crime sites, convergent settings, comfort spaces, and corrupting spots — the four key types of places that form dangerous networks. Learn practical strategies for using data analytics, intelligence, and targeted interventions to solve underlying problems instead of just chasing calls for service. Key topics include: • How place networks differ from traditional hot spots • Real-world examples of PNI delivering sustained violence reduction • Balancing enforcement, environmental changes, and partnerships with place managers • Assessing success and avoiding displacement • Lessons for agencies of any size looking to build analytical capacity and community-oriented results Whether you’re a police leader, crime analyst, policymaker, or concerned citizen, this episode delivers actionable insights on moving from reactive policing to true problem-solving that improves both safety and quality of life. Tune in to learn how targeted, data-driven place network strategies can transform policing and rebuild trust in high-crime communities. Guest: Joel Vargas, J.D. – Police Division Manager, Austin Police Department | Former crime prevention coordinator, intelligence analyst, and community policing innovator. Find Joel: https://www.linkedin.com/in/joel-vargas-j-d-864aa144/ #ProblemOrientedPolicing #PlaceNetworkInvestigations #BlueLineProject #LawEnforcement #CommunityPolicing #ViolenceReduction #PolicingReform #DataDrivenPolicing

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Problem-Oriented Policing. Real Solutions. Real Conversations.