Evaluation of Five Criminal Justice Demonstration Projects in Polk County, Iowa Concept Paper (1974)


This is a proposal prepared by Vera for a one-year evaluation of five demonstration programs in the criminal justice system in Polk County, Iowa. The primary objective would be evaluation of the effectiveness and impact of each of the five programs and analysis of their interaction. The evaluation would be conducted so as to assist programs in meeting their goals with maximum effectiveness.


Photo by Lucy Nicholson (REUTERS)

People in Jail and Prison in Spring 2021

Vera Institute of Justice (Vera) researchers collected data on the number of people in local jails and state and federal prisons throughout 2020 and into spring 2021. Vera researchers estimated the incarcerated population using a sample of approximately 1,600 jail jurisdictions, 50 states, the Federal Bureau of Prisons, the U.S. Marshals Service (U ...

  • Jacob Kang-Brown, Chase Montagnet, Jasmine Heiss
June 07, 2021