Criminology is the study of crime from a social perspective: the causes of crime, the social impact of crime, and the criminals involved in the crime. Criminologists study criminology in an attempt to better understand what motivates the criminal to act in a criminal manner. Their work is generally focused on the7 study of: Theories explaining illegal and/or deviant behavior, The social reaction to crime. The political terrain of social control. The effectiveness of anti-crime policies, Criminals, Crimes, Crime victims. Many law enforcement agencies routinely seek out criminologists to profile criminals so as to gain a better understanding of their rationale and what motivates their criminal behavior. Criminologists seek to gain answers to what really happens on the streets, in courtrooms, in police stations, and behind prison bars. These social science professionals use their expertise to systematically evaluate the effectiveness of any number of laws, policies, and proposals. They also look for answers by studying the socio-cultural, economic, and global roots of crime, the meaning of crime, and crime rates, and by measuring criminal activity and its impact on criminals and on society as a whole.