This working paper examines some of the consequences of stop and frisk as a law enforcement strategy. This is important because stop and frisk has become the crime-prevention strategy of choice in American policing. It is seen as increasing the perception among potential offenders that they face a high risk of being apprehended if they commit a crime or are carrying contraband, and thus reduces...

A growing body of research highlights the collateral consequences of mass incarceration, including stop-and-frisk policing tactics. Living in a neighborhood with aggressive policing may affect one's mental health, especially for men who are the primary targets of police stops. We examine whether there is an association between psychological distress and neighborhood-level aggressive policing (i...

This document is a demonstration document, prepared for PolyX Ltd., demonstrating the use of the Polynomial Toolbox for Matlab when designing residual generators for fault diagnosis. A brief introduction to the residual generation problem for fault diagnosis in linear systems is given and a solution based on polynomial methods are outlined. Also, a design example, complete with MATLAB code illu...