As readers of this site know, I generally stay out of discussions involving only trial court proceedings (including federal court trials, which are the other main interest in my professional career). Like many another lawyer, I have followed events over the past 48 hours or so in the Moussaoui sentencing proceeding, involving the astonishing revelation that a government attorney intentionally briefed (apparently sequestered) trial witnesses on the opening statements and early testimony. I have watched with interest as the court has wrestled with questions relating to how to address this breach of the court’s order relating to the conduct of this phase of the trial. I have noted Judge Brinkema’s solution to the problem, by barring testimony from the affected witnesses (which apparently include witnesses for both sides). But until someone uses the A-word, I don’t get into the fray.
Today, somebody used the A-word; the government reportedly is considering whether to appeal to the Fourth Circuit the judge’s decision on this issue. Attorneys for Moussaoui have argued that no interlocutory appeal is possible, because the trial is underway. The judge herself has apparently stated that she doesn’t know whether the ruling is appealable or not.
I may not know how this will all turn out, but I can offer this much insight into the question as to whether an appeal will lie at this point: No dice. This is an evidentiary ruling in the course of a trial. If disgruntled litigants felt the need (and perceived the right) to appeal immediately every evidentiary ruling, trials would become hopeless patchworks of proceedings, running back and forth between district court and court of appeals. This is neither a "final decision of the district court" (28 USC §1291), nor does it "conclusively determine a disputed question" or "resolve an important issue completely separate from the merits of the action" (Van Cauwenberghe v. Biard, 486 US 517 (1988)). Instead, it appears to me to be a "fully consummated decision that is but a step toward final judgment in which it will merge." Behrens v. Pelletier, 516 US 299 (1996).
Nor is this a case in which Judge Brinkema, were she so inclined, could certify an issue for interlocutory appeal under 28 USC §1292(b); that only applies in civil cases.
In my view, it is overwhelmingly likely that the Fourth Circuit would reject an appeal by the government at this point.