As you deploy crime cameras, whether as part of a city-owned municipal surveillance program, or as part of a corporate security effort, one lingering question remains: How effective are these cameras? It's a question that the Dallas Police Department, under the eye of Deputy Chief Brian Harvey, has had to answer for its own deployment. Through a regular analysis that ties together camera usage with incidents, arrests, and investigation requests, the department addresses the value proposition of a technology and monitoring investment for municipal video surveillance.