Chicago is a city with extreme concentrations of racialized poverty and inequity, one that relies on an extensive network of repressive agencies to police the poor and suppress struggles for social justice. examines the role of local law enforcement, federal immigration authorities, and national security agencies in upholding the city’s highly unequal social order. Collaboratively authored by the Policing in Chicago Research Group, was developed in dialogue with movements on the front lines of struggles against racist policing in Black, Latinx, and Arab/Muslim communities. It analyzes the connections between three police “wars”—on crime, terror, and immigrants—focusing on the weaponization of data and the coordination between local and national agencies to suppress communities of color and undermine social movements. Topics include high-tech, data-based tools of policing; the racialized archetypes that ground the police wars; the manufacturing of criminals and terrorists; the subversion of sanctuary city protections; and abolitionist responses to policing, such as the Erase the Database campaign. Police networks and infrastructure are notoriously impenetrable to community members and scholars, making a rare, vital example of scholars working directly with community organizations to map police networks and intervene in policing practices. Engaging in a methodology designed to provide support for transformative justice organizations, the Policing in Chicago Research Group offers a critical perspective on the abolition of imperial policing, both in Chicago and around the globe.