C. Ray Jeffery explains what contributes to criminal behavior and states that sociological, psychological, and biological characteristics work together to produce criminal behavior. He says that two things that cause certain forms of behavior are that individuals are born with certain biological and psychological characteristics. Jeffery states that poverty plays an important role in the development of individuals and that it indirectly causes criminal behavior. He says that diet and exposure to pollutants damage the brain because chemicals are transformed in the brain from biochemical compounds to neurochemical compounds (Williams and McShane