Which American city formed the first organized police department following the guidelines established in the Metropolitan Police Act?

The first organized police department in the United States, following the guidelines established in the Metropolitan Police Act of 1829, was formed in Boston in 1838. This department was modeled after London's Metropolitan Police and aimed to provide a professional and organized approach to law enforcement. Other cities, such as New York City, soon followed suit in establishing their own police forces based on similar principles.