There is no single cause of crime, it is rooted in a diversity of casual factors and takes a variety of forms, depending on the situation in which it occurs. Nonetheless, some theories of human behavior help us understand why certain people engage in acts that society defines as criminal or deviant, while others do not. A theory is a kind of model.
Theories posit relationships, often of a casual sort, between events and things under study. Theories once created must be tested to determine whether they are valid and modern criminology has become increasingly scientific. There are many different theories that suggest why people commit crimes. Each of which has there own scientific explanation.
Early biological theories of crime tried to establish a connection between physical deformity, disability and ugliness with crime. While borderline scientific disciplines such as physiognomy attempted to establish a link between facial features, personality and crime. Explanation of biological theories of crime favors biological traits as a dominant factor that will affect human behavior and actions.
Biological theories of crime which in past years has fallen into disrepute are beginnings to experience something of a contemporary resurgence. Most early theories of the biological school of crime causation, which built on inherited or bodily characteristics and features, made certain fundamental assumptions. Basic determinants of human behavior, including criminal tenancies.
The basic determinants of human behavior, including criminality, may be passed on from generation to generation. In other behavior is the result of biords, a penchant for crime may be inherited. Biological theories tended towards seeing crime as a form of illness, caused by pathological factors specific to certain classes of individuals. We assume people were born criminals Cesare Lombroso famous criminologist, rejected the classical school or rational choice model because he believe criminality was inherited.