Criminal theories. Many theories and categories exist about why crimes are caused. Some of those theories include; Biological Theories, Conflict Theories, Sociological Theories, and Psychological Theories.

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Criminal Theories

Richard K. Cohn

In 2008, there were a total number of 1,093,428 crimes committed in Texas alone.  Throughout the years people have wondered why certain individuals commit these crimes.  There are also many theories about criminal law and whether or not people with a mental incapability should be imprisoned or put into an institution where they can be treated and possibly return to civilization.  Many theories and categories exist about why crimes are caused.  Some of those theories include; Biological Theories, Conflict Theories, Sociological Theories, and Psychological Theories.

The Biological theory was introduced by Cesare Lombroso (1836-1909), who was an Italian physician pioneer in the study of biological crime.  He stated in his work that one third of the subjects he tested were homo delinquents (someone who suffers from bodily and mental abnormalities who possess other physical and psychical characteristics than a normal person, or even someone who is mentally unbalanced).  Later, in the mid 1900s William Sheldon developed the method for classifying people based on their body type, otherwise known as somatotyping.  After studying two-hundred juvenile delinquents between the ages of fifteen and twenty-one he decided the young men possessed one of three somatypes (body types).  The three body types are Mesomorphs, which is someone with relatively more muscle, bone, and connective tissue, Endomorphs, or someone who is more round and soft throughout various regions of their body, short tapering and small limbs; small bones; and soft smooth velvety skin, and Ectomorphs which is someone that is thin, fragile, and delicate.

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 Another important theorist was Hans Eysenck, who believed that criminal behavior was inherited and also caused by interaction with environmental circumstances.  To support his theory in the late 1970s he did a study indicating that men with an extra male chromosome (the y chromosome), called the xyy syndrome, were more likely to commit a crime.

Conflict perspective is the belief that conflict is a fundamental aspect of social life and can never be fully resolved.  Radical criminology placed blame for criminally and deviant behavior. Radical criminology has its roots in early conflict theories and in the thoughts of Dutch criminologist ...

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