In today's society, one will find that there are many different factors that go into the development of a criminal mind, and it is impossible to single out one particular cause of criminal behavior. Criminal behavior often stems from both biological and environmental factors. In many cases criminals share similar physical traits which the general population do not usually have. For example criminals have smaller brains than properly adjusted individuals. However biological reasons cannot solely be the cause of criminal behavior. Therefore, one must look to other sources as to how a criminal mind is developed. Social and environmental factors also are at fault for developing a person to the point at which they are lead to committing a criminal act. Often, someone who has committed a violent crime shows evidence of a poorly developed childhood, or the unsuitable current conditions in which the subject lives. In addition if one studies victimology which is the role that the victim plays in the crime, it is apparent that there are many different causes for criminal behavior. Through the examination of biological factors, in addition to the social and environmental factors which make up a criminal mind, one can conclude that a criminal often is born with traits common to those of criminals, it is the environment that exist around them that brings out the criminal within them to commit indecent acts of crime.
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It is a fact that criminals have a smaller brains than law abiding citizens. Often, offenders share particular physical traits such as, being young males, muscular, having lower than average IQ, and a impulsive personality. Serial offenders are usually hyperactive and difficult children If a person has a low IQ, it is proven to be directly related to their tendency to be commit impulse actions that provide an immediate payoff. For instance, a rape or a mugging would provide a criminal with an immediate payoff.