A Justice organization

Name a Justice organization, ie. State Troopers, District Attorney's office. Research it and explain how it​‌‍‌‍‍‌‌‌‍‍‍‍‌‍‍‍‌‍‌​ runs. Who is the boss or authority? Who pays their salaries and how? Are the appointed or hired? Critical Facts about the organization​‌‍‌‍‍‌‌‌‍‍‍‍‌‍‍‍‌‍‌​.