Criminology is the study of crime in society. Criminology investigates crime, crime behavior, causes for the crime and more. The person who likes crime stories interested in investigations, social behaviors can take criminology as their career. Criminology includes sociology and law. The professional in criminology are criminologists. Criminologists are specialist in investing the cases on murders, robbery, serial crimes etc. they study many cases in preventing future crimes. Their main task is to invest the crime get the precaution on crime, prevention on future crimes. Criminology must have some skills in observation, legal justice, judging system and logical thinking. They also deal with social problems.