Federal Trials vs. Courts-Martial in 2017: How Often Each Ended in Acquittal
Air Force and Navy cases account for nearly all 2017 court-martial records. Of 217 contested cases with a verdict, 87 ended in a full acquittal (40%). In fiscal year 2017, federal courts tried 1,874 defendants, and 276 trials ended in an acquittal (15%).
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In brief: Air Force and Navy cases account for nearly all 2017 court-martial records. Of 217 contested cases with a verdict, 87 ended in a full acquittal (40%). In fiscal year 2017, federal courts tried 1,874 defendants, and 276 trials ended in an acquittal (15%).
This post uses the Federal Judicial Center's records of 75,163 federal defendants whose cases ended in fiscal year 2017, compared with court-martial results from this site's Military Trial Results data (updated November 2, 2026). The series also draws on the U.S. Sentencing Commission's records of 659,036 people sentenced in fiscal years 2016 to 2025. It is part of the Federal Prosecution Analysis series, which builds on Military Moves Toward Sentencing Guidelines to Mirror the Federal System. How the numbers were built: How the Federal Comparison Data Was Built.
Court-Martial Acquittals by Service in 2017
The records for 2017 come from the Air Force, the Marine Corps, and the Navy. The Air Force had 54 full acquittals in 155 contested cases. The Navy had 33 in 61. The Marine Corps had 0 in 1.
Across all services, 217 contested cases reached a verdict. A contested case is one with a not-guilty or mixed plea. The 87 full acquittals were 40% of them, and 16 more cases (7%) ended in a partial acquittal.
The Army records begin in 2020, and the Marine Corps count for this year holds a single case.
The 87 full acquittals in 2017 compare with 71 in 2016, but the number of contested cases rose as well, from 179 to 217. The percentage stayed at 40% in both years.
Forum Breakdown
A judge alone decided 6 cases, with 3 full acquittals (3 of 6). Members decided 156 cases, with 54 full acquittals (35%). Enlisted members acquitted fully in 24 of 55 cases (44%), and officer members in 30 of 101 (30%).
For 55 cases, no forum is listed. In 30 of those, the accused was fully acquitted (55%). The missing forum field limits how far these splits can be read.
The enlisted and officer panel counts are the parts of the members total, so they describe the same 156 cases from a different angle. Officer panels acquitted fully less often than enlisted panels in this year.
Federal Defendants in Fiscal Year 2017
The Federal Judicial Center reports 75,163 defendants whose cases ended in this year. Of them, 67,418 (90%) pleaded guilty. Another 5,871 (8%) had their cases dismissed, and 1,874 (2%) went to trial.
The 276 acquittals (15%) divide between jury and bench trials. Jury trials numbered 1,616 and had 196 acquittals (12%). Bench trials numbered 258 and had 80 acquittals (31%). Total convictions were 69,016 (92%).
Different Counts, Different Questions
Federal numbers are drawn from every case that ended, so most of the defendants never had a trial. The court-martial numbers begin with contested cases, so they leave out cases where the accused pleaded guilty to every charge.
A court-martial rate that includes mixed pleas can differ from a federal trial rate for that reason alone. Grand jury practice differs as well. Courts-martial have no grand jury.
Where 2017 Fits in the Series
The 2017 court-martial rate matches 2016 at 40%. The federal rate of 15% is a point lower than the 16% of the year before. The table lists every year to 2025.
| Year | Courts-martial: full acquittals | Federal trials: acquittals |
|---|---|---|
| 2016 | 71 of 179 (40%) | 291 of 1,853 (16%) |
| 2017 | 87 of 217 (40%) | 276 of 1,874 (15%) |
| 2018 | 90 of 239 (38%) | 320 of 1,879 (17%) |
| 2019 | 90 of 210 (43%) | 287 of 1,950 (15%) |
| 2020 | 81 of 167 (49%) | 199 of 1,425 (14%) |
| 2021 | 166 of 459 (36%) | 196 of 1,081 (18%) |
| 2022 | 144 of 411 (35%) | 290 of 1,669 (17%) |
| 2023 | 146 of 362 (40%) | 263 of 1,840 (14%) |
| 2024 | 123 of 340 (36%) | 220 of 1,723 (13%) |
| 2025 | 106 of 286 (37%) | 192 of 1,555 (12%) |
Limits
These records cannot explain the results. They cover recorded verdicts only, and the numbers of cases for the Marine Corps and the judge-alone forum are too small to build a rate on.
A reader should also remember that these are separate record sets. One comes from the Federal Judicial Center and the other from court-martial records, and each has its own rules for what counts as a case.
How We Counted
Courts-martial: contested cases with a verdict and a trial date in 2017 (217). Federal: defendants whose cases ended in fiscal year 2017 (75,163; 1,874 trials), Federal Judicial Center.
Federal fiscal years run from October 1 to September 30. No person, judge, or lawyer is identified in any of these records.
What to Keep in Mind
Who is in each set of numbers. The federal sentencing numbers come from the U.S. Sentencing Commission. They count only people who were convicted and sentenced in federal district court. People whose cases were dismissed or who were acquitted are not in them. The military numbers come from court-martial results, which include acquittals. To compare acquittal or dismissal rates, the federal side uses a different source: the Federal Judicial Center's case data, which counts every defendant whose case ended.
Different cases reach each system. Federal prosecutors bring a narrow set of cases. In fiscal year 2024, immigration and drug trafficking cases were 59% of everyone sentenced in federal court (36,664 of 61,678). Many crimes that the military prosecutes, such as most assaults, most sexual assaults between adults, and drug use, are usually state crimes for civilians and reach federal court only in special situations, such as on federal land or in Indian Country. A federal case and a court-martial for the same crime can involve different kinds of facts.
How "plea" and "trial" are counted. In the federal sentencing numbers, "trial" means the person was convicted after a trial, including people who pleaded guilty to some counts and went to trial on others. People acquitted at trial are not in these numbers at all (see "Who is in each set of numbers"). In the federal case data, the trial rate counts both convictions and acquittals at trial among all defendants whose cases ended, including dismissed cases. Military numbers count contested cases that reached a verdict. These denominators are not the same, and each post states the one it uses.
Time periods. Federal numbers are by federal fiscal year (October 1 to September 30), based on the sentencing date. The military numbers are by trial date. Neither source has the date of the offense, so a change in law shows up in either data set gradually.
Related Analysis
- Military Moves Toward Sentencing Guidelines to Mirror the Federal System (the background article)
- Federal Prosecution Analysis (all federal posts)
- How the Federal Comparison Data Was Built (sources and method)
- Are Courts-Martial More Likely to End in Acquittal Than Federal Trials? (overview)
- Federal Trials vs. Courts-Martial in 2016: How Often Each Ended in Acquittal (previous or next year)
- Federal Trials vs. Courts-Martial in 2018: How Often Each Ended in Acquittal (previous or next year)
- Forum Selection (law firm reference page)
- U.S. Sentencing Commission, Individual Offender Datafiles (source)
- Federal Judicial Center, Integrated Database (criminal defendants) (source)
About the author. Jocelyn C. Stewart is a retired Army JAG with more than 24 years of trying courts-martial and more than 200 jury trials. She hosts Where All The Bodies Are Buried and runs the Law Office of Jocelyn C. Stewart. This analysis is for education and information only. It is not legal advice, and every case is different.