Learn Your Lawyer · Army · Defense and Trial Counsel
Yvette C. Tyson
Counsel of record in 15 courts-martial in the Military Trial Results data
(12 as defense counsel, 3 as trial counsel)
Jun 2021 to Jul 2024
As Defense Counsel (Defending)
Average Contests Per Year: 2.2
Pleas When Defending
Plea Agreements
Who Decided the Case
Contested Panel Cases: 3 of 4
Findings When Defending, All Cases
Contested Findings (Defending)
| Decided By | Cases | Convicted | Partial | Acquitted |
|---|---|---|---|---|
| Judge Alone | 1 | 0 | 0 | 1 |
| Enlisted Panel | 3 | 1 | 1 | 1 |
Sentences When Defending
Enlisted (10 Convictions)
No Punitive Discharge
3 of 10 Enlisted Convictions
UCMJ Articles When Defending
| Article | Cases | Contested | Convicted | Acquitted |
|---|---|---|---|---|
| Art. 80 Attempts | 3 | 0 | 3 | 0 |
| Art. 92 Failure to obey order or regulation | 3 | 0 | 3 | 0 |
| Art. 119 Manslaughter | 2 | 0 | 2 | 0 |
| Art. 113 Drunken or reckless operation of vehicle | 1 | 0 | 1 | 0 |
| Art. 120 Rape and sexual assault | 1 | 1 | 1 | 0 |
| Art. 120b Rape and sexual assault of a child | 1 | 1 | 0 | 1 |
| Art. 120c Other sexual misconduct | 1 | 0 | 1 | 0 |
| Art. 128 Assault | 1 | 1 | 1 | 1 |
| Art. 129 Burglary; unlawful entry | 1 | 0 | 1 | 0 |
| Art. 134 General article | 1 | 0 | 1 | 0 |
| Charges not listed in the record | 1 | 1 | 0 | 1 |
As Trial Counsel (Prosecuting)
Average Contests Per Year: 1
Pleas When Prosecuting
Plea Agreements
Who Decided the Case
Contested Panel Cases: 1 of 1
Findings When Prosecuting, All Cases
Contested Findings (Prosecuting)
| Decided By | Cases | Convicted | Partial | Acquitted |
|---|---|---|---|---|
| Enlisted Panel | 1 | 0 | 0 | 1 |
Sentences When Prosecuting
Enlisted (1 Conviction)
Officers and Warrant Officers (1 Conviction)
No Punitive Discharge
0 of 1 Enlisted Conviction
Member Retained: 0 of 1 Officer Conviction
Judges, Most Cases Together
Opposing Counsel, Most Cases
- Philip R. Bedford 4
- Carter D. Westphal 2
- Simeon T. Lyons 2
- Zachary J. Ray 2
- Alex J. Berkun 1
- Avery L. Ory 1
- Benjamin M. Joslin 1
- Brandon A. Tower 1
Where
- Vicenza (Europe) 6
- Central Command (CENTCOM) 3
- Joint Base San Antonio-Fort Sam Houston 3
- Kaiserslautern (Europe) 2
- Vilseck (Europe) 1
Court-Martial Data and Trends
Data from public court-martial records on the installations and UCMJ articles in these cases.
- Joint Base San Antonio-Fort Sam Houston: Court-Martial Data and Trends
- Kaiserslautern (Europe): Court-Martial Data and Trends
- Vilseck (Europe): Court-Martial Data and Trends
- Article 92 (Failure to Obey Order or Regulation): Court-Martial Data and Trends
- Article 80 (Attempts): Court-Martial Data and Trends
- Article 107 (False Official Statements): Court-Martial Data and Trends
- Article 119 (Manslaughter): Court-Martial Data and Trends
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Counsel of record means this lawyer is listed as defense counsel or trial counsel in the public record of the case. Most cases list more than one lawyer on each side, and the records do not say who led or who argued, so the numbers describe cases this lawyer was counsel on, not individual wins or losses. Pages cover military counsel only; civilian counsel appear in lists by name. Percentages are shown for every count, however small, so check the number of cases behind each one. The Army records say whether there was a plea agreement, not what it said; Air Force records do not report plea agreements, and many Air Force records from 2016 to 2020 do not list the plea. In the article tables one case counts under each article charged, and Air Force records rarely list the charges in cases that ended in acquittal (those show as Charges not listed in the record). Member Retained means the sentence did not include a punitive discharge; it does not rule out a later administrative separation. Mixed Plea* means the record lists a guilty plea but the case ended in a partial acquittal, so at least one charge was contested (a mixed plea, or a guilty plea to a lesser offense). Contested cases are those with a not guilty or mixed plea, plus any case that ended in an acquittal or partial acquittal even when the record does not list the plea.
Source: public records of trial published by each service under Article 140a, UCMJ, as collected for the Military Trial Results page (data updated October 29, 2026). Counts reflect only the cases in this data and may be incomplete. Names are shown as published in the source records.
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