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State v. Rozerick E. Mattox
2017 WI 9
| Wis. | 2017
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Background

  • Decedent S.L. was found dead with signs of injection; Waukesha Deputy Medical Examiner performed autopsy and sent blood/urine/tissue samples to St. Louis University Toxicology Lab per routine autopsy protocol.
  • The toxicology report listed numerical concentrations of morphine, 6‑MAM (heroin metabolite), codeine, and related figures; it was signed but not sworn, certified, or interpretive.
  • The medical examiner (Dr. Okia) used the toxicology numbers, together with autopsy findings, to conclude cause of death: acute heroin intoxication; she testified about the meaning of the numbers at trial.
  • Police independently investigated and developed evidence linking Mattox to supplying heroin to S.L.; Mattox was tried (bench) for first‑degree reckless homicide resulting from delivery of heroin that caused S.L.’s death.
  • The toxicology analyst who signed the report did not testify; Mattox objected under the Sixth Amendment Confrontation Clause. The circuit court admitted the report for the medical examiner’s opinion basis; the court of appeals certified the confrontation question to the Wisconsin Supreme Court.

Issues

Issue Plaintiff's Argument Defendant's Argument Held
Whether admitting the toxicology report (and medical examiner testimony based on it) violated Mattox's Sixth Amendment Confrontation Clause rights The State: report was non‑testimonial because it was produced to assist the medical examiner in determining cause of death (not created for prosecution); admission through the examiner did not deny confrontation Mattox: the toxicology report is testimonial forensic evidence and the lab analyst’s absence deprived him of the right to cross‑examine the declarant Held: No confrontation violation — the report was non‑testimonial under the Supreme Court’s "primary purpose" test (Ohio v. Clark); admission was permissible when requested by ME as part of autopsy protocol and not produced at police request
Whether Melendez‑Diaz/Bullcoming control (i.e., forensic reports are categorically testimonial) Mattox: those cases require live testimony from the analyst where a lab report is used to prove an element of the crime State: Melendez‑Diaz/Bullcoming differ because those reports were created at police request or were affidavit‑like and intended for prosecution; here samples were collected before any suspect or prosecution existed Held: Distinguishable — Melendez‑Diaz and Bullcoming involve reports prepared for law‑enforcement evidentiary purposes and formal certification; this toxicology report lacked that primary purpose/formality
Whether court should adopt a general rule exempting autopsy/toxicology reports from Confrontation Clause State asked for broad declaration that autopsy and similar toxicology reports are generally non‑testimonial Mattox (and dissent): primary purpose inquiry is fact‑specific; reports can be testimonial depending on police involvement, formality, and whether prepared to prove facts for prosecution Held: Court declined a categorical rule for autopsy reports generally, but held a narrower rule: toxicology reports like this one (numeric concentration data, requested by ME, not at police impetus) are generally non‑testimonial

Key Cases Cited

  • Crawford v. Washington, 541 U.S. 36 (2004) (Crawford established that admission of out‑of‑court "testimonial" statements absent prior cross‑examination violates the Sixth Amendment)
  • Melendez‑Diaz v. Massachusetts, 557 U.S. 305 (2009) (forensic certificates made for prosecution were testimonial; authors must testify)
  • Bullcoming v. New Mexico, 564 U.S. 647 (2011) (lab report certifying blood‑alcohol was testimonial; surrogate testimony insufficient)
  • Williams v. Illinois, 567 U.S. 50 (2012) (plurality: certain forensic results not testimonial where primary purpose was not to accuse a specific individual)
  • Ohio v. Clark, 135 S. Ct. 2173 (2015) (reaffirmed objective "primary purpose" test for whether out‑of‑court statements are testimonial)
  • State v. Heine, 354 Wis. 2d 1, 844 N.W.2d 409 (Wis. Ct. App. 2014) (court of appeals held similar toxicology report admissible)
  • State v. VanDyke, 361 Wis. 2d 738, 863 N.W.2d 626 (Wis. Ct. App. 2015) (court of appeals held similar toxicology report testimonial; overruled here)
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Case Details

Case Name: State v. Rozerick E. Mattox
Court Name: Wisconsin Supreme Court
Date Published: Feb 14, 2017
Citation: 2017 WI 9
Docket Number: 2015AP000158-CR
Court Abbreviation: Wis.