: Police, detectives, and special agents protect people from crime and violence. They patrol highways, issue traffic tickets, and help accident victims. They also collect evidence and investigate crimes. Police detectives often testify in court about their cases. Most work some evenings and weekends. Police work is dangerous and stressful.
Bureau of Labor Statistics, U.S. Department of Labor, Occupational Outlook Handbook, 2008-09 Edition at http://www.bls.gov/OCO/