This data collection provides information about sentencing patterns established by the United States District Courts for federal offenses. It is one of only a few studies that examine federal sentencing patterns, court involvement, sentencing, and criminal histories. Eleven types of crimes are included: bank robbery, embezzlement, income tax evasion, mail theft, forgery, drugs, random other, false claims, homicide, bribery of a public official, and mail fraud. There are three kinds of data files that pertain to the 11 types of crimes: psi files, offense files, and AO files. The psi files describe defendant demographic background and criminal history. The offense files contain questions tailored to a particular type of offense committed by a defendant and the results of conviction and sentencing. The AO files provide additional information on defendants' background characteristics, court records, and dates of court entry and exit.