drug enforcement administration: enforce federal laws and regulations pertaining to controlled substances
federal bureau of investigation: reoriented bureaus mission, placing more emphasis on white collar crime, organized crime, and political corruption. would also focus on preventing future terrorist attacks
bureau of alcohol, tobacco, firearms, explosives: responsible for enforcing federal firearms laws, regulating explosives-related industry to prevent terrorists and criminals from coming into possession of explosives and to ensure that those in possession of explosives are properly licensed, enforcing federal laws as they pertain to the collection of federal taxes on alcohol and tobacco products
US marshals service: providing security to federal courts, housing federal detainees, and conducting fugitive investigations, and administering the nations witness protection program.
federal bureau of prisons is also part of department of justice
four characteristics that differentiates them: focus on more than crime, have many more alternatives at their disposal for addressing problems, place significantly more emphasis on the prevention of problems, primarily concern themselves with matters occurring on, or with, private property
raises number of important issues: quality of private security personnel, few federal, state, or local laws that guide private police conduct, problems related to cooperation between public and private police,