Address police department roles and functions

Write a 1,050- to 1,400-word paper in which you address police department roles and functions. Include the following in your paper:

•    Identify the principal roles and functions of police organizations and their role as it applies to the law.
•    Describe various types of police agencies at the local, state, and federal level and the roles and functions of each.
•    Explain the role and function of patrol work.