The Arrington Doctrine

Seventh Circuit Confirms Joint-Enterprise Imputed Negligence Applies to Criminal Ventures and Limits the Reach of State Dead-Man Statutes in Mixed Federal–State Actions

1. Introduction

Juanita Arrington, Michael Cokes, and Isiah Stevenson sued the City of Chicago and Chicago Police Officer Dean W. Ewing after a high-speed collision killed two occupants and injured others during a police pursuit of an armed-robbery suspect. A jury found entirely for the defendants, and the district court refused to grant a new trial. On appeal, the Seventh Circuit confronted three core issues:

• Whether defendants could rely on the state-law doctrine of joint enterprise imputed negligence – traditionally used in civil automobile cases – when the alleged enterprise was an illegal armed robbery getaway;
• Whether the Illinois Dead Man’s Act barred testimony about the deceased driver’s conduct in a civil action that also contained a federal § 1983 claim;
• Whether exclusion of a COPA (Civilian Office of Police Accountability) investigative report constituted reversible error.

The Court affirmed across the board, generating two significant clarifications that practitioners will now know as the Arrington Doctrine:

1. The Illinois joint-enterprise rule of imputed negligence is not limited to lawful “business” ventures; it encompasses criminal ventures when the evidence shows the traditional four elements; and
2. In mixed federal–state civil actions, Federal Rule of Evidence 601 displaces state dead-man statutes whenever the contested testimony relates to the federal claim, even incidentally.

2. Summary of the Judgment

Writing for a unanimous panel (Judges Easterbrook, Jackson-Akiwumi, and Kolar), Judge Jackson-Akiwumi held that the district court committed neither legal error nor evidentiary abuse of discretion. Key holdings include:

• The joint-enterprise affirmative defense, though raised late, was properly allowed; there was more than a “mere scintilla” of evidence for the jury to consider it; and Illinois law does not confine the doctrine to legitimate enterprises.
• Because the same testimony about the decedent’s actions was relevant to plaintiffs’ federal § 1983 claim, Rule 601—rather than the Illinois Dead Man’s Act—governed witness competency, rendering the testimony admissible.
• Exclusion of the COPA report under Rule 403 was well within the district court’s discretion; the report’s raw evidentiary materials were otherwise available, and admitting COPA’s conclusions risked unfair prejudice and jury confusion.

3. Detailed Analysis

3.1 Precedents Cited and Their Influence

• Grubb v. Illinois Terminal Co., 8 N.E.2d 934 (Ill. 1937)
  Established the four-element test for joint enterprise in Illinois. The Seventh Circuit relied on Grubb to confirm that Illinois requires no formal partnership paperwork and—importantly—contains no express “lawful purpose” limitation.
• Erie R.R. v. Tompkins, 304 U.S. 64 (1938)
  Articulates that federal courts apply state substantive law. Plaintiffs argued that Illinois courts restrict joint enterprise to legitimate ventures; the Seventh Circuit found no such substantive rule in Illinois law, therefore no Erie barrier to applying the doctrine here.
• Restatement (Second) of Torts § 491
  Cited in Illinois pattern instructions; broadly defines joint enterprises. The Court used this to bolster the view that the doctrine is conceptually broader than a formal “business venture.”
• Estate of Suskovich v. Anthem Health Plans, 553 F.3d 559 (7th Cir. 2009) and Donohoe v. COPC, 736 F. Supp. 845 (N.D. Ill. 1990)
  Both explain that when evidence relates to federal claims, Rule 601 overrides state dead-man acts. These cases furnished the analytical roadmap the panel adopted.
• Santiago v. Lane, 894 F.2d 218 (7th Cir. 1990)
  Plaintiffs invoked Santiago to argue contributory negligence is no defense to § 1983 claims. The panel distinguished it: Santiago involved intentional/reckless conduct; Arrington featured ordinary negligence concepts.

3.2 The Court’s Legal Reasoning

(a) Joint Enterprise Imputed Negligence

Illinois pattern instructions list four elements: (1) agreement, (2) common purpose, (3) common business interest, (4) shared right of control. The district court substituted “mutual profit-seeking endeavor,” clarifying that profit need not be legitimate. Plaintiffs argued this expanded state law. The Seventh Circuit disagreed for three reasons:

1. No Illinois statute or case expressly restricts the doctrine to lawful conduct.
2. Historical Illinois cases (including Grubb) illustrate a functional, not formalistic, approach—“business” simply distinguishes from casual car-pooling.
3. The Restatement and pattern instructions emphasize pecuniary community, not legality.

Applying Filipovich v. K&R Express, the panel required only “more than a scintilla” of supporting evidence. Surveillance video, occupants’ knowledge of Malone’s reputation, recovered cash, and failure to exit the vehicle supplied that quantum, even though the jury ultimately rejected the defense.

(b) Dead Man’s Act & Rule 601

Rule 601 default: every witness is competent. The state dead-man exception applies only when state law supplies the rule of decision “for that claim or defense.” Because the same facts (Arrington’s statements, in-car conduct) were material to the federal § 1983 proximate-cause analysis, the panel adopted Judge Shadur’s Donohoe reasoning: deference to state law would produce two conflicting competency regimes for identical testimony. Rule 601 therefore controlled, rendering the witnesses competent.

(c) Rule 403 & COPA Report

The COPA report contained factual summaries plus disciplinary conclusions (speeding, stop-sign violation, 90-day suspensions). The district court found the factual portions cumulative (other evidence admitted) and the conclusions unduly prejudicial. The appellate panel applied the “no-reasonable-jurist-could-differ” standard and affirmed, noting plaintiffs still introduced underlying data through experts. When Officer Ewing’s testimony hinted at exoneration, the judge struck it and instructed the jury, a narrower remedy the panel deemed sufficient.

3.3 Anticipated Impact of the Decision

• Police-pursuit litigation: Municipal defendants can more readily argue that passive occupants share responsibility for injuries if evidence supports a criminal joint purpose.
• State tort doctrines in federal court: Arrington cements the Seventh Circuit approach—state dead-man statutes yield whenever the same testimony touches a federal claim, even if state claims are also pending.
• Jury-instruction drafting: Trial judges in Illinois-based federal cases have explicit approval to deviate from pattern instructions when the record or policy warrants, especially regarding element 3 (“profit-seeking”).
• Police-oversight reports: Although oversight-agency findings can be powerful, Arrington underscores the high Rule 403 hurdle when such reports combine facts with liability or policy conclusions.

4. Complex Concepts Simplified

5. Conclusion

Arrington v. City of Chicago does not merely affirm a defense verdict; it delivers two doctrinal guideposts for litigants in the Seventh Circuit:

1. A defendant may assert Illinois’s joint-enterprise rule against plaintiffs engaged in a criminal escapade, provided evidence shows agreement, common purpose, shared pecuniary interest (lawful or not), and shared control rights.
2. Where federal and state claims intertwine, Rule 601 displaces contrary state competency rules—including dead-man statutes—so long as the contested testimony also advances or defends the federal claim.

Together, these holdings provide significant clarity for trial courts crafting jury instructions, ruling on witness competency, and balancing the probative value of oversight-agency reports. Police-pursuit cases, multi-claim tort actions, and any litigation featuring deceased participants will now invoke Arrington as a touchstone for both substantive and evidentiary strategy.