In 1845, which US city established the first municipal police force?

• A. Philadelphia
• B. New York
• C. Boston
• D. Baltimore

Answer: (B)

The main idea here is the shift from informal watchmen and constables to a centralized, organized city police force in the mid-19th century. In 1845, New York City established its municipal police department, creating a unified, city-controlled force with standardized duties and officers hired and paid by the city. This move marked a defining moment in American policing, illustrating the move toward professional, centralized urban policing that other cities would imitate. While some cities had earlier forms of formal policing, the 1845 establishment in New York is highlighted as the landmark event for creating the first modern municipal police force in a major city, which is why this is the best answer.