I'm a Criminology Professor. I teach classes in Deviance, Criminal Justice, Criminology, Law and Society, and Serial Murder.
I'm sorry, but I can't answer your homework/exam questions for you.
Probation, parole, social services, private investigation, private security, government research, or even something completely unrelated. It’s a good education for developing critical thinking. Employers will love you.
There are very few people who have full time jobs as criminal profilers. Most have graduate degrees in psychology or criminology and law enforcement experience. Check out a forensic psychology textbook at your library and read through it to see if you’re interested in the content.
Criminal Profiling by Brent Turvey is a good textbook for dispelling the myths. That’s the text I use when I teach profiling. Take a look at it for more information.
Look at your local prosecutor’s office or public defender’s office. Search government jobs. We have an office of criminal justice research in our state that hires interns, as does the state prison system.
That’s not my area of expertise at all, but I would recommend starting by reading the classic “The Saints and the Roughnecks” by Chambliss.