Explore the challenges facing policing during the first half of the twentieth century, including both the problems themselves and your analysis of solutions attempted by police forces. Include problems created by changes in policing as a career, including changes in mission, technology, and conditions of service, by changes in the public image of police, including changing ideas around gender and society, and by regime changes and political revolutions. Include your analysis of patterns you find, and remember to evaluate these forces within their specific historical context.