The main method has used in this study by review the health profiles of the incarcerated group. Via this method, the basic background information can be gather and analyze with categorized people into different groups such age, races, gender etc. Furthermore, with group analyze some conclusion can be made to execute a possible solution to decrease the incarcerated people in order to improve health conditions. The health records are also useful to make prediction trend of the future environment, even though the conclusion from the prediction is the situation would not change as much as general publics and authorities expected.
By reviewing health profiles of the incarcerated group to study this issue, personally would say it is quite a quick and reliable way but not quite sure on the innovation level of this kind of methodology. Another issue with method is the possibility on the violation of personal information and ethical controversy.