chicago police department
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Author(s):  
Abhishek Yadav ◽  
Rakshit Adgaonkar ◽  
Rohit Ingale ◽  
Omkar Pathak

The most serious security challenges we face in these turbulent times are terrorist attacks and the transmission of disease. length and breadth are measured in hundredths of a centimetre. On a daily basis, we see the most minor offences committed by ordinary citizens. Details of breaches and recurring cases of items should be applied to files to ensure that they are up to date. When it is known that a crime has been committed, people believe that disciplinary action will be taken, even if there is no means of knowing which one. The study of criminology helps to broaden our understanding of who is likely to become a suspect. In the midst of his attempts to identify and deter alleged criminals from reoffending the legal system, he is incorporating both computer science and deep learning. Anyone interested in learning more about the workings of the Chicago Police Force should visit "The Chicago Police Department Site." The Crime Timeline will keep track of all criminal activity as well as the time and date of any incident that occurs. The data collection and modelling have been completed; all that remains is on-line modelling and compilation. To address this question, we must first determine if the case history of K-grooming and other related methods will help with criminal prediction. The invention is typically used as a testing tool, but it can also be used in conjunction with other technologies. Based on internal or external metrics, an algorithm can estimate how easily law enforcement authorities may be able to track, anticipate, and cope with, or preempt, risks, such as the ratio of those sentenced to those arrested, with a life sentence to those awaiting the risk of life imprisonment.


2021 ◽  
Author(s):  
George Wood ◽  
Tom Tyler ◽  
Andrew V Papachristos ◽  
Jonathan Roth ◽  
Pedro H. C. Sant'Anna

Wood et al. (2020) studied the rollout of a procedural justice training program in the Chicago Police Department and found large and statistically significant impacts on complaints and sustained complaints against police officers and police use of force. This document describes a subtle statistical problem that led the magnitude of those estimates to be inflated. We then re-analyze the data using a methodology that corrects for this problem. The re-analysis provides less strong conclusions about the effectiveness of the training than the original study: although the point estimates for most outcomes and specifications are negative and of a meaningful magnitude, the confidence intervals typically include zero or very small effects. On the whole, we interpret the data as providing suggestive evidence that procedural justice training reduced the use of force, but no statistically significant evidence for a reduction in complaints or sustained complaints.


Author(s):  
Linda Zhao ◽  
Andrew V. Papachristos

This study applies the growing field of network science to explore whether police violence is associated with characteristics of an officer’s social networks and his or her placement within those networks. To do this, we re-create the network of police misconduct for the Chicago Police Department using more than 38,442 complaints filed against police officers between 2000 and 2003. Our statistical models reveal that officers who shoot at civilians are often “brokers” within the social networks of policing, occupying important positions between other actors in the network and often connecting otherwise disconnected parts of the social structure between other officers within larger networks of misconduct. This finding holds, even net measures of officer activity, career movement, and sociodemographic background. Our finding suggest that policies and interventions aimed at curbing police shootings should include not only individual assessments of risk but also an understanding of officers’ positions within larger social networks.


2019 ◽  
Vol 18 (3) ◽  
pp. 49-56
Author(s):  
Syahmi Syahiran Ahmad Ridzuan ◽  
Zaid Omar ◽  
Usman Ullah Sheikh

The rise of technology spurs the advancement in the surveillance field. Many commercial spaces reduced the patrol guard in favor of Closed-Circuit Television (CCTV) installation and even some countries already used surveillance drone which has greater mobility. In recent years, the CCTV Footage have also been used for crime investigation by law enforcement such as in Boston Bombing 2013 incident. However, this led us into producing huge unmanageable footage collection, the common issue of Big Data era. While there is more information to identify a potential suspect, the massive size of data needed to go over manually is a very laborious task. Therefore, some researchers proposed using Content-Based Video Retrieval (CBVR) method to enable to query a specific feature of an object or a human. Due to the limitations like visibility and quality of video footage, only certain features are selected for recognition based on Chicago Police Department guidelines. This paper presents the comprehensive reviews on CBVR techniques used for clothing, gender and ethnic recognition of the person of interest and how can it be applied in crime investigation. From the findings, the three recognition types can be combined to create a Content-Based Video Retrieval system for person identification.


2019 ◽  
pp. 37-48
Author(s):  
Joe Kraus

This chapter documents Lenny Patrick’s growing paranoia by 1974. This was a pivotal year—the twenty-fifth since the death of Benjamin Zuckerman and Patrick’s own rise to power. Everyone knew that and, for practical purposes, such knowledge mattered. It meant people made way for him; that they understood he had influence to help in shady business; and that they acceded to his suggestions, requests, or threats. In a legal sense, though, the difference between knowledge and proof was everything. Until law enforcement had hard evidence against him, he was a free man. And by 1974 the FBI and Chicago Police Department had been trying to collect such evidence for at least fifteen years through sustained campaigns of surveillance, wiretapping, and harassment. Wherever Patrick went, someone was trying to track him. He had had a long run as boss of Chicago Jewish organized crime, but the net was tightening around him.


2019 ◽  
Vol 18 (3) ◽  
pp. 1028-1067 ◽  
Author(s):  
Jacob William Faber ◽  
Jessica Rose Kalbfeld

Reports of citizen complaints of police misconduct often note that officers are rarely disciplined for alleged misconduct. The perception of little officer accountability contributes to widespread distrust of law enforcement in communities of color. This project investigates how race and segregation shape the outcomes of allegations made against the Chicago Police Department (CPD) between 2011 and 2014. We find that complaints by black and Latino citizens and against white officers are less likely to be sustained. We show neighborhood context interacts with complainant characteristics: Incidents alleged by white citizens in high–crime and predominantly black neighborhoods are more likely to be sustained. These findings provide context for understanding tensions between communities of color and the CPD. These results are consistent with theories that individual and institutional actors prioritize white victimhood and reflect the neighborhood effects literature stressing the interaction between individual and contextual factors in shaping outcomes.


2019 ◽  
Vol 109 ◽  
pp. 157-160
Author(s):  
Bocar Ba ◽  
Jeffrey Grogger

Many police jurisdictions have recently expanded their Taser arsenals with a goal of reducing officer-involved shootings. We analyze substitution between Tasers and firearms by means of an event study made possible by a policy change at the Chicago Police Department. Before March 2010, only sergeants and field training officers had access to Tasers; after that date, they were made available to patrol officers. We find that the change in Taser policy led to a large increase in Taser use, but not to a decrease in the use of firearms.


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