Joining Counts in a Single Charging Document

A charging document may contain one count or fifty. Which it contains is a choice the government makes, constrained by Rule 8 and reviewable under Rule 14, and the choice shapes the case more than almost any other early decision. A defendant facing four counts in one trial is in a different position from the same defendant facing four trials, and both sides know it.

The two tests in Rule 8

Rule 8(a) governs offenses charged against a single defendant. Joinder is permitted where the offenses are of the same or similar character, or are based on the same act or transaction, or are connected with or constitute parts of a common scheme or plan. The first of those three is the broadest and the most frequently contested, because same or similar character does not require any factual relationship at all.

Rule 8(b) governs defendants and is narrower. Two or more defendants may be charged together if they are alleged to have participated in the same act or transaction, or in the same series of acts or transactions, constituting an offense or offenses. Not every defendant need be charged in every count. What is required is a series, which courts read to demand a logical relationship rather than a coincidence of timing or method.

The difference matters in a multi-defendant case. Where several defendants are charged, courts have generally applied Rule 8(b) to the whole instrument, so that offenses joined against one defendant must also satisfy the series requirement rather than the looser same-character standard. Circuits have not been entirely uniform on the point, and the analysis is worth confirming locally.

Same or similar character deserves separate attention because it is the loosest of the three grounds. Two bank robberies committed months apart by the same person, with no shared planning and no common participants, may be joined on that basis alone. The justification offered is efficiency; the objection is that the rule permits precisely the accumulation of similar-act evidence the rules of evidence would otherwise keep out. Courts resolve the tension at the Rule 14 stage rather than by narrowing Rule 8.

Misjoinder compared with prejudice

Misjoinder is a pleading question. It asks whether the charging document, read on its face, alleges a relationship the rule permits. Evidence developed later does not cure a document that failed the test when filed, and a document that satisfied it does not become misjoined because the proof turned out differently. The inquiry is confined to the four corners of the instrument and any facts the government has formally represented.

Prejudicial joinder under Rule 14 assumes the pleading is proper and asks a different question: whether trying these counts or these defendants together would prejudice a defendant or the government. The court may order separate trials of counts, sever defendants, or provide any other relief that justice requires, and it may inspect materials in camera to decide.

The remedies differ as much as the tests. Misjoinder is a defect in the instrument and, when established before trial, ordinarily produces separate charging documents. Prejudice is a discretionary judgment reviewed for abuse of discretion, and courts frequently answer it with something short of severance: an instruction, an order limiting the sequence of proof, or a redaction.

The recurring severance arguments

Four arguments account for most severance motions. The first is disposition: proof of one offense suggests a propensity that the rules of evidence would otherwise exclude. The second is imbalance, where a weak count rides on the strength of a strong one, or a peripheral defendant is tried alongside evidence of a far larger enterprise. Both are versions of spillover, and both are usually met with a limiting instruction.

The third concerns a co-defendant's out-of-court statement that implicates another defendant who cannot cross-examine its maker. The recognized remedies are severance, redaction that eliminates any reference to the other defendant, or exclusion. Redaction that leaves an obvious gap pointing at the co-defendant has been held insufficient, and the practical difficulty of drafting a clean redaction often decides the motion.

The fourth is antagonistic defenses. Courts have declined to treat mutually exclusive defenses as automatically requiring severance, asking instead whether a joint trial would compromise a specific trial right or prevent a reliable judgment about guilt or innocence. That framing places a substantial burden on the moving defendant, and general assertions of finger-pointing rarely satisfy it.

What unites all four is the court's starting preference. Joint trials of jointly charged defendants are the norm, and the rules are read against a background assumption that severance is the exception. A motion that argues from that assumption, identifying the specific evidence that will be heard and the specific instruction that will fail, does better than one arguing that a joint trial is inherently unfair. The record made on the motion is also what an appellate court will read.

What the count structure does later

Joinder decisions are usually argued as trial questions and felt as sentencing ones. Multiple counts of conviction are combined under grouping rules that treat closely related counts as a single unit and others as adding to the offense level, so the number of counts does not translate directly into exposure. The mechanics of that combination are part of the guideline calculation performed step by step.

Count structure also drives negotiation. A charging document with several counts gives the government room to dismiss some as part of an agreement, which is one of the things a plea agreement can and cannot promise. Whether that dismissal changes the sentence depends on whether the dismissed conduct still counts as relevant conduct, and frequently it does.

Finally, the structure interacts with limitation. Where a count is added by a superseding instrument, its timeliness is measured on its own terms rather than by the date of the first filing, unless it merely narrows what was already charged. That relation-back question is examined in how long the government has to bring a charge, and it is one of the few joinder-adjacent issues that can dispose of a count outright.