Requesting Government-Funded Expert Assistance
Key takeaways
- The right to necessary expert assistance is due process, not charity — Ake v. Oklahoma for indigent defendants, and Garries for every service member without regard to indigence.
- Consultants and witnesses carry different standards: “necessary for an adequate defense” versus “relevant and necessary” plus the adequate-substitute option.
- The Gonzalez three-part showing — why needed, what it would accomplish, why the defense cannot do it alone — is where requests are won and lost.
- If the military judge orders an expert and the government refuses, the proceedings are abated. R.C.M. 703(d)(2)(B).
- The judge cannot deny your consultant by pointing you to the government’s own expert. United States v. Lee, 64 M.J. 213 (C.A.A.F. 2006).
Where the right comes from
The entitlement to expert help predates the current rule. In Ake v. Oklahoma, 470 U.S. 68 (1985), the Supreme Court held that when an indigent accused shows expert assistance is needed on a substantial issue — in the case-in-chief or at sentencing — due process requires the government to provide it. Military law went further: under United States v. Garries, 22 M.J. 288 (C.M.A. 1986), service members are entitled to investigative or other expert assistance when necessary for an adequate defense, without regard to indigence. Article 46, UCMJ supplies the statutory backbone — equal opportunity to obtain witnesses and evidence — and CAAF has read it as a pointed instruction:
“Article 46 is a clear statement of congressional intent against government exploitation of its opportunity to obtain an expert vastly superior to the defense’s.”United States v. Warner, 62 M.J. 114 (C.A.A.F. 2005)
The Military Justice Act of 2016 wrote the consultant standard into R.C.M. 703(d) itself (effective 1 January 2019), but the standard it codified — necessary for an adequate defense — is the same one the case law had applied for decades. United States v. Short, 50 M.J. 370 (C.A.A.F. 1999); United States v. Ndanyi, 45 M.J. 315 (C.A.A.F. 1996).
Two roles, two standards
As the expert witnesses guide explains, a consultant assists the defense team confidentially while a witness testifies — and R.C.M. 703(d)(2)(A) assigns each a different test when the military judge reviews a denied request:
| Request | Standard the judge applies | Key feature |
|---|---|---|
| Expert witness | Whether the testimony is relevant and necessary — and, if so, whether the government has provided or will provide an adequate substitute | The government can satisfy the ruling with a comparable expert of its choosing |
| Expert consultant | Whether the assistance is necessary for an adequate defense | No helpfulness-to-the-panel showing required — the question is what the defense needs to prepare |
The witness standard has real teeth: in United States v. McHugh, 2018 CCA LEXIS 462 (Army Ct. Crim. App. 2018), the judge properly refused to compel an intimate-partner-violence expert in a rape trial because the proposed testimony was neither relevant nor necessary to help the factfinder. And remember the sequencing point — winning a consultant does not automatically convert that person into a witness; admissibility at trial still runs through the M.R.E. 702 and Houser gatekeeping analysis.
The R.C.M. 703(d) request procedure
Expert employment sits inside the broader rule on production of witnesses and evidence, and R.C.M. 703(d) prescribes the route step by step:
- Request to the convening authority — in advance of employing the expert, with notice to the opposing party, asking the convening authority to authorize the employment and fix compensation. The request must include a complete statement of reasons why the employment is necessary and the estimated cost. R.C.M. 703(d)(1).
- Renewal before the military judge — if the convening authority denies the request, it may be renewed after referral before the military judge, who applies the standards above. R.C.M. 703(d)(2)(A).
- Abatement — if the judge grants the motion (or finds a substitute required) and the government fails to comply, the proceedings shall be abated. R.C.M. 703(d)(2)(B). The case simply stops until the government funds the expert.
Two practical corollaries. Without advance authorization, an expert cannot be paid fees beyond ordinary witness entitlements — so retaining first and asking later forfeits the funding. And because the convening-authority request is a prerequisite to the judicial motion, a thin initial request poisons the renewed one; the record you build at step one is the record the judge reads at step two.
The Freeman and Gonzalez necessity showings
For consultants, military judges apply a combined framework. Under United States v. Freeman, 65 M.J. 451 (C.A.A.F. 2008), the defense bears the burden of showing a reasonable probability that (1) an expert would be of assistance to the defense, and (2) denial of expert assistance would result in a fundamentally unfair trial. The first prong — necessity — is established through the three-part showing of United States v. Gonzalez, 39 M.J. 459 (C.M.A. 1991):
- Why is the expert assistance required? The issue must be central to the defense theory of the case. United States v. Lloyd, 69 M.J. 95 (C.A.A.F. 2010).
- What would the expert assistance accomplish for the accused?
- Why is the defense unable to gather and present the evidence that the expert assistant would be able to develop?
The third question is the trap. Defense counsel are expected to educate themselves to competence on the issues in a case (United States v. Kelly, 39 M.J. 235 (C.M.A. 1994)), so a request that amounts to “counsel would rather not learn this” fails. But CAAF has acknowledged the counterweight: the rapid growth of forensic science can make cases more complex than general practitioners can handle alone. United States v. McAllister, 55 M.J. 270 (C.A.A.F. 2001); Warner. The winning showing threads that needle — naming the specific methodology, dataset, or clinical judgment that no amount of lawyer self-study can substitute for.
The stakes of getting it right are not abstract. Denials have produced findings set aside on appeal: in United States v. McAllister, 64 M.J. 248 (C.A.A.F. 2007), the denied PCR expert would have revealed DNA from three unidentified individuals, evidence that could have raised reasonable doubt — and the error was not harmless. Denials have also been affirmed where the defense showing was generic: no false-confession consultant absent evidence of an abnormal mental condition or submissive personality suggesting the confession was actually false (United States v. Bresnahan, 62 M.J. 137 (C.A.A.F. 2005)), and no expert assistance in an unremarkable child sexual assault case where CID laboratory experts had testified (Ndanyi).
What this means if you need an expert and the government says no
A denial from the convening authority is the beginning, not the end — the request renews before the military judge, and the judge’s ruling carries the abatement hammer. But the renewed motion is only as strong as the showing behind it: what issue is central to your defense, what the expert would do, and why your lawyers cannot do it themselves. Those answers take work to develop, and they cannot be conjured the week of trial. If expert-dependent evidence sits at the center of your case, raise it with counsel now, while the record can still be built.
Adequate-substitute fights
For expert witnesses, the government can meet its obligation with an adequate substitute — and that word “adequate” generates the litigation. The equal-access principle sets the baseline: where the government provides itself a top expert, it should provide the defense a reasonably comparable one. Warner. CAAF sharpened the point in United States v. Lee, 64 M.J. 213 (C.A.A.F. 2006): the playing field is at its most uneven when the government benefits from scientific evidence and expert testimony while the defense is denied a necessary expert to prepare for and respond to it — and a military judge cannot deny a defense request by telling the defense to use the government’s own expert to prepare for trial.
The substitute fight is therefore two fights. First, comparability: a substitute who lacks the qualifications, independence, or specific competence of the requested expert is not adequate. Second, role: a government-employed expert who assists both sides is no consultant at all, because the defense loses the confidential, adversarial assistance the right exists to provide. Defense counsel should force the government to identify its proposed substitute on the record and then litigate the gap — specialty by specialty, task by task — rather than accepting a name and a billet.
Once granted: the expert joins the defense team
A granted consultant is detailed to the defense team, and the consequences follow automatically. Communications among the expert, counsel, and the accused are privileged under M.R.E. 502 (United States v. Turner, 28 M.J. 487 (C.M.A. 1989)), and the government may not interview the consultant without defense counsel’s approval. The shield drops only when the defense lists the expert as a trial witness — from that point the government may contact and interview the expert freely. United States v. Langston, 32 M.J. 894 (A.F.C.M.R. 1991). That transition is a strategic decision, not an accident: the defense controls when, and whether, its consultant steps into the light. The protection matters most for mental health consultants — a confidential defense psychologist can evaluate the accused candidly in a way no R.C.M. 706 sanity board, whose results flow to both sides, ever could.
Drafting a request that survives
- Start from the government’s evidence, not a wish list. Tie the request to specific items produced in discovery — the lab report, the extraction, the interview recording — and identify the analytical step the defense cannot evaluate unaided.
- Answer all three Gonzalez questions expressly. Why required (and why central to the defense theory), what it will accomplish, and why counsel’s self-education cannot substitute. Requests that skip the third question invite denial under Kelly.
- Name the expert, the tasks, and the cost. The rule demands a complete statement of reasons and an estimated cost — and specificity signals seriousness to the convening authority and builds the record for the judge.
- Mirror the government’s expert posture. If the prosecution has a named forensic examiner, invoke Warner and Lee: equal access means reasonably comparable help, not a referral to the government’s own witness.
- Preserve the issue. Renew the denied request before the military judge, get the ruling on the record, and if an inadequate substitute is offered, litigate its inadequacy — the difference between a preserved McAllister issue and a waived one.
Practitioner’s note
The requests we see denied share one flaw: they argue the case is serious rather than the assistance necessary. Seriousness is assumed; necessity must be shown. Our practice is to draft the consultant request only after our own review of the government’s forensic file, so the request can say precisely which finding we need help testing and what the consultant will do in the first thirty days. We also decide before filing whether we ever intend the consultant to testify — because the confidentiality calculus, and sometimes the choice of expert, changes with that answer.
Frequently asked questions
How does the defense request an expert at government expense?
By written request to the convening authority before employing the expert, with notice to the government, stating a complete statement of reasons why the employment is necessary and the estimated cost. If denied, the request may be renewed after referral before the military judge, and if the judge grants it and the government still refuses, the proceedings are abated.
What is the Gonzalez test for expert assistance?
A three-part showing establishing necessity: why the expert assistance is required — the issue must be central to the defense theory; what the assistance would accomplish for the accused; and why the defense cannot gather and present that evidence itself. It supplies the first prong of the Freeman test, which also requires showing that denial would make the trial fundamentally unfair.
Can the military judge just tell us to use the prosecution's expert?
No. CAAF held in United States v. Lee that a judge cannot deny a defense request for expert assistance by directing the defense to prepare with the government's own expert. Where the government gives itself a top expert, equal access under Article 46 requires the defense receive reasonably comparable help.
What counts as an adequate substitute for a requested expert?
For expert witnesses, the government may provide a substitute instead of the specific expert requested — but the substitute must be reasonably comparable in qualifications and able to perform the same role. A substitute who lacks the requested expert's specialty or independence can be challenged, and the defense should litigate comparability on the record.
What happens if the government ignores an order to fund a defense expert?
The court-martial stops. R.C.M. 703(d)(2)(B) directs that if the military judge grants the motion for employment of an expert, or finds the government must provide a substitute, the proceedings shall be abated if the government fails to comply. That abatement remedy is what gives defense expert litigation its leverage.
About the attorneys behind this guide
Michael Waddington, Civilian Military Defense Lawyer
Michael Waddington has litigated defense expert requests for more than 25 years — from DNA and digital forensics consultants to forensic psychologists — building the Gonzalez showings that turn denials into granted motions. His time as an Army prosecutor taught him how commands evaluate these requests, and his defense practice in Article 120, war crimes, and violent-offense courts-martial worldwide has made the funded defense expert one of his most consistently used tools.
Alexandra González-Waddington, Founding Partner
Alexandra González-Waddington, founding partner of Gonzalez & Waddington, has spent more than 20 years securing expert assistance for accused service members in sexual assault, domestic violence, murder, and white-collar courts-martial. She has fought adequate-substitute battles where the government offered its own personnel in place of independent consultants, and she legally reviewed this page against R.C.M. 703(d) and the Freeman, Gonzalez, and Warner line of cases.
Talk to a civilian court-martial defense lawyer today
Gonzalez & Waddington defends Soldiers, Sailors, Airmen, Marines, Guardians, and Coast Guardsmen worldwide — in UCMJ investigations, courts-martial, Article 15/NJP actions, GOMOR rebuttals, administrative separation boards, and Boards of Inquiry. We defend the whole case: the investigation, the trial, the administrative fallout, and the long-term consequences to your rank, retirement, clearance, and discharge.
Sources for this guide include the Uniform Code of Military Justice, the Manual for Courts-Martial (2024 ed.), the Rules for Courts-Martial, the TJAGLCS Criminal Law Deskbook, and the cited decisions of the Court of Appeals for the Armed Forces and the service Courts of Criminal Appeals. It is attorney advertising and general legal information — not legal advice, and reading it does not create an attorney–client relationship. Every case turns on its own facts. Service procedures vary; Army references (AR 27-10) are noted where used.