This document discusses the origins and development of parole systems. It describes how Alexander Maconochie first developed the concept of parole in the 1800s using a system of conditional release. Parole systems then spread to the United States in the late 1800s/early 1900s. By the 1920s, most states and the federal government had established parole boards to make release decisions. The document also examines the parole decision-making process, conditions of release, and challenges with reentry into the community after release.