You are required to use proper APA style citations and reference. The United States has the world’s highest per capita incarceration rate with 2.2 million adults incarcerated. The incarcerated population has greatly increased since the mid 1990’s. The number of Americans behind bars is a controversial topic that must be addressed by the criminal justice system. With all the reform efforts and a declining crime rate, why has the inmate population increase during this period? How does prison overcrowding affect the jail population?