Federal Bureau of Investigation (FBI)

The FBI is involved all year round with the most serious criminal's in the U.S. They deal with both federal criminal investigative body and internal  intelligence agency. Also checks crimes on Indian Reservations. The FBI over all pretty much protects the U.S. from terrorist to fraud. The FBI is set into different groups or offices in these order probably:

• Probationary Agent
• Special Agent
• Senior Special Agent
• Supervisory Special Agent
• Assistant Special Agent-in-Charge (ASAC)
• Special Agent-in-Charge (SAC)
• Assistant Director
• Associate Executive Assistant Director

So forth on with the rankings

It's not an easy job to do but it can be a very rewarding job in the long run. But my honest opinion on this job, is that you must be serious about anything to everything, if you like to think, then it could be a great career for you. I found this information on this website http://en.wikipedia.org/wiki/Federal_Bureau_of_Investigation .