North Carolina, 344 U.S. 424, 427, 73 S.Ct. 349, 350, 97 L.Ed. 456 (1953), reasoned that a mistrial motion must be granted only upon a showing of “manifest necessity”; absent a showing of serious prejudice, or a denial of due process, however, the district court stated that there was no requirement to grant a mistrial. The defendant argues that the court should not have used the “manifest necessity” test; rather, since the defendant was requesting the mistrial, as opposed to the government, a less strict standard should apply. Since the court did not use a lesser standard, the defendant asserts that the district court’s exercise of discretion cannot be trusted. We are not persuaded by the defendant’s argument in this regard and find that the district court’s articulation and application of the test was not in error.
The defendant is correct in noting that more than one test for reviewing the granting of mistrials has been articulated by the Supreme Court, depending on whether the government or the defendant makes the motion. Compare Brock, 344 U.S. at 427, 73 S.Ct. at 350 (“ ‘a trial can be discontinued when particular circumstances manifest a necessity for so doing, and when failure to discontinue would defeat the ends of justice’ ”) (quoting Wade v. Hunter, 336 U.S. 684, 690, 69 S.Ct. 834, 838, 93 L.Ed. 974 (1949)), with United States v. Dinitz, 424 U.S. 600, 609-10, 96 S.Ct. 1075, 1080-81, 47 L.Ed.2d 267 (1976) (if defendant has “ ‘no choice’ but to request a mistrial,” and if there is a “legitimate claim of seriously prejudicial error,” a mistrial can be granted upon the defendant’s motion even in the absence of a “manifest necessity”).
However, both Brock and Dinitz are double jeopardy cases where the issue presented was whether the retrial of a defendant placed him in double jeopardy. Under Brock, double jeopardy attaches if the court sua sponte, or pursuant to the government’s motion, grants a mistrial and there was no manifest necessity for doing so; under such circumstances, the defendant cannot be retried. In contrast, if the defendant requests a mistrial, the general rule is that “any barrier to a retrial” is removed, United States v. Thomas, 728 F.2d 313, 318 (6th Cir.1984); there need not be a “manifest necessity” for a trial court to permissibly grant a defendant’s motion for a mistrial, and double jeopardy will not attach. Dinitz, 424 U.S. at 610, 96 S.Ct. at 1081.
In the instant case, we are not reviewing a trial court’s grant of a mistrial as in Dinitz or Brock; rather, we are reviewing a denial of a mistrial motion and must determine under what circumstances a mistrial must be granted, not simply when a mistrial may permissibly be granted. Since granting a mistrial is generally within a trial court’s discretion, see Brock, 344 U.S. at 427, 73 S.Ct. at 350, we must decide when a trial court has abused its discretion by failing to grant a mistrial. See United States v. Faulkenbery, 472 F.2d 879, 882 (9th Cir.) (appeals court may reverse a denial of a mistrial motion only upon a showing of abuse of discretion), cert. denied, 411 U.S. 970, 93 S.Ct. 2161, 36 L.Ed.2d 692 (1973).
We initially note that the district court arguably applied the Dinitz standard by inquiring into whether the defendant would suffer any serious prejudice were the trial to continue, and we agree with the district court that the allegation of prejudice in this case does not rise to the level of serious prejudice.11 Further, the district court inquired into whether the defendant would be denied due process were the trial not aborted. We believe that a determination of the fairness to the accused is the primary concern in ruling upon a mistrial motion; if, by admitting this evidence, the
11
In Dinitz, the defendant had been faced with judicial or prosecutorial misconduct, and the Supreme Court spoke in terms of seriously prejudicial error, rather than simply serious prejudice. We do not believe that the prosecutor’s conduct or the court’s admission of this evidence can be classified as seriously prejudicial error; therefore, regardless of whether the test is serious prejudice or seriously prejudicial error, the defendant’s allegations do not warrant a finding that a mistrial should have been granted.