Thomas P. Bonczar

Thomas P. Bonczar is best known for writing statistical reports on imprisonment, probation, and parole for the U.S. Department of Justice's Bureau of Justice Statistics. Sources available here identify him as a BJS statistician and credit him on works including Prevalence of Imprisonment in the U.S. Population, 1974-2001, Lifetime Likelihood of Going to State or Federal Prison (with Allen J. Beck), and reports on adults on probation and parole in the United States.

His writing focuses on making large national datasets readable and meaningful. In Prevalence of Imprisonment in the U.S. Population, 1974-2001, published in 2003, he examined long-term incarceration trends and estimated how many U.S. adults had served time in state or federal prison, helping frame a major public conversation about the scale of imprisonment in America.

Publicly available sources in this search mainly document Bonczar through his government publications rather than through detailed personal biographical profiles. Because of that, it is more accurate to describe him through his body of work: a careful statistical writer whose reports became widely cited references in discussions of criminal justice in the United States.