A Year of Courts-Martial at Mayport, Florida: 2020
The records list 17 courts-martial at Mayport, Florida in 2020. Contested cases made up 65%, compared with 30% across the Navy and Marine Corps. Of 12 convicted enlisted members, 4 received a punitive discharge (33%), compared with 62% service-wide.
Understanding Trends in Military Practice · 4 min read
Trends › By Installation › Mayport, Florida › 2020
Short answer: The records list 17 courts-martial at Mayport, Florida in 2020. Contested cases made up 65%, compared with 30% across the Navy and Marine Corps. Of 12 convicted enlisted members, 4 received a punitive discharge (33%), compared with 62% service-wide.
Most Accused Contested a Charge
Of the 17 cases, 11 were contested and 6 ended in a guilty plea. The contested share of 65% was higher than the 30% in the Navy and Marine Corps as a whole.
Full acquittals came in 36% of the 11 contested cases that reached a verdict, close to the 34% across the service. Another 1 was a partial acquittal, with a finding of not guilty on at least one charge and guilty on another.
Fewer Punitive Discharges
Of 12 convicted enlisted members, 4 received a punitive discharge: 3 bad-conduct discharges and 1 dishonorable discharge. Across the Navy and Marine Corps, the share was 62%.
The year also includes 1 convicted officer or warrant officer, who was dismissed. Dismissal is the officer equivalent of a punitive discharge. A sentence without a punitive discharge does not rule out a later administrative separation.
Confinement
Confinement was part of 69% of the 13 convictions. The median confinement was 7 months, compared with 6 months in the rest of the Navy and Marine Corps. A quarter of the sentences with confinement were 9 months or longer.
These are adjudged sentences, before any plea-agreement cap, clemency, or appeal.
Charges
All 17 records list charges. Article 128 (assault) appeared in 7 cases (41%), compared with 36% across the service. Article 112a (drug offenses) appeared in 4 cases (24%), compared with 30%. Article 81 (conspiracy) appeared in 3 cases (18%), compared with 7%.
Article 134, Article 92, Article 120, Article 107, and Article 131b (obstructing justice) each appeared in 2 cases (12%). A case with several articles counts under each one.
| UCMJ Article | Cases | Share here | Share, the whole Navy and Marine Corps docket |
|---|---|---|---|
| Art. 128 Assault | 7 | 41% | 36% |
| Art. 112a Wrongful use, possession of controlled substances | 4 | 24% | 30% |
| Art. 81 Conspiracy | 3 | 18% | 7% |
| Art. 134 General article | 2 | 12% | 13% |
| Art. 92 Failure to obey order or regulation | 2 | 12% | 18% |
| Art. 120 Rape and sexual assault | 2 | 12% | 16% |
| Art. 107 False official statements | 2 | 12% | 12% |
| Art. 131b Obstructing justice | 2 | 12% | 7% |
Rank and Court Level
Among the accused with rank recorded, 8 were junior enlisted members, 7 were NCOs, and 1 was an officer. This group is more senior than the Navy and Marine Corps as a whole.
General courts-martial heard 6 cases and special courts-martial heard 11. The general share of 35% compared with 41% across the service. A special court-martial caps confinement at one year and cannot impose a dishonorable discharge.
Kaneohe Bay and Okinawa
Marine Corps Base Hawaii, Kaneohe Bay tried 20 cases and Okinawa, Japan tried 23 in the same year. The median confinement was 9 months at Kaneohe Bay and 4 months at Okinawa. Punitive discharges for convicted enlisted members were 56% at Kaneohe Bay and 62% at Okinawa.
| Installation | Cases | Contested | Full acquittals (decided contested) | Median confinement | Punitive discharge (enlisted) |
|---|---|---|---|---|---|
| Mayport, Florida | 17 | 65% | 4 of 11 | 7 months | 33% |
| Marine Corps Base Hawaii, Kaneohe Bay | 20 | — | — | 9 months | 56% |
| Okinawa, Japan | 23 | — | — | 4 months | 62% |
What the Records Leave Out
The records cover only cases that reached a court-martial. They do not describe the evidence or the plea terms. Navy and Marine Corps records before December 2020 often omit the plea and forum.
The records give trial dates, not offense dates, and they do not show cases handled by nonjudicial punishment or administrative separation.
Dates and sources for the law changes mentioned here: UCMJ change timeline.
How We Counted
Every court-martial tried at Mayport, Florida with a trial date in 2020 (17 cases).
Source: public court-martial records (Article 140a, UCMJ) in Military Trial Results, data updated October 24, 2026. Definitions, sources, and known gaps: how this data was built. Errors: content@bodiesburied.com.
Related Analysis
- Mayport, Florida: Court-Martial Data and Trends (hub)
- By Year (hub)
- Mayport, Florida in 2017: 16 Courts-Martial, Year in Review (previous / next)
- What Mayport, Florida Tried in 2021 (previous / next)
- Inside 69 Courts-Martial at Mayport, Florida, 2019–2023 (the whole period)
- A Year of Courts-Martial at Bremerton, Washington: 2015
- A Year of Courts-Martial at Bremerton, Washington: 2017
- A Year of Courts-Martial at Bremerton, Washington: 2018
- A Year of Courts-Martial at Bremerton, Washington: 2020
- Search every case in Military Trial Results (members)
Military Judges Who Presided Over Cases at Mayport, Florida, 2020
Names and links only. Each judge's record of pleas, findings, and sentences is on their Know Your Judge page, part of the Court-Martial Characters membership.
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.