"Criminologists study crime statistics to understand the causes and effects of crime. This information can help prevent and control crime." (CareerCruising.com)
Criminologists often work for police departments, prisons, colleges, and other places.
A criminologist usually makes from $35k to $100k+ per year, although those who teach it for a college earn around $40k-$130k. Those who do not teach earn around $35k-$80k.
To become a criminologist, a 4 year bachelor's degree is usually required in criminology, psychology, or sociology. A master's degree can also be helpful in getting a position.