Established in 1855, the Chicago Police Department was formed in response to the city's rapid urbanization and increasing crime rates amid a growing immigrant population. The creation of a municipal police force aimed to maintain order and address public safety concerns in a burgeoning metropolis. The establishment of the police department marked a significant development in urban governance and law enforcement practices.

Captured the grit of industrial cities in poetry by Carl Sandburg and others, highlighting labor tensions and the role of police in class struggles. Poets like Langston Hughes and later, Gwendolyn Brooks, explored the complexities of urban life, often addressing social issues and the human experience.