The possible outcome for this hypothesis is the possibility of aggressive criminal behaviors due to lead exposure. This is measured by the methods applied during the study. The variables needed for the study includes the range for child population and the time for lead exposure. For instance, we will conduct a study for early teenage years (7-9 years old) for a span of 2 years lead exposure. Then we will also conduct another study for teenage years (10-14 years old) with a span of 2 years also. After that, the results will be compared and determine how they respond. In this manner, we may achieve the difference between age group and how this affects their behavior