State v. Massaro, 347 Conn. 200

Background

Defendant John A. Massaro was convicted of sale of a narcotic after Officer Faulkner observed a brief hand-to-hand exchange between Massaro and Sarah Mikuski; Faulkner recovered 0.218g of rock‑form cocaine from Mikuski moments later and found drug paraphernalia on her person.
Text messages from Mikuski to Massaro (“hey u do a 30 for $26?”) and testimony from Mikuski and her companion Anthony Roig corroborated a buyer/seller transaction; Roig and Faulkner corroborated the timing and that Mikuski had no money after the exchange.
Months after the incident defense investigator Benjamin Pagoni met Mikuski and prepared a memorandum stating she told him she had given drugs to Massaro (i.e., that she was the seller). Defense failed to timely disclose that memorandum to the state.
The trial court ruled the memorandum was discoverable and, because it had not been disclosed, precluded its admission and limited Pagoni’s testimony to impeachment (Pagoni was also barred from mentioning the written memo on the stand).
On cross‑examination the prosecutor questioned Pagoni about general narcotics‑trade characteristics (though Pagoni had not been offered or qualified as an expert); the Appellate Court assumed error on both evidentiary points but found both errors harmless.
The Connecticut Supreme Court affirmed the Appellate Court: any discovery‑sanction error and any error in allowing expert‑style cross‑examination of Pagoni were harmless given the strong independent evidence and the limited or cumulative value of the excluded/elicited material.

Issues

Issue	State's Argument	Massaro's Argument	Held
Trial court sanction excluding Pagoni’s written memorandum as undisclosed witness statement	Sanction was proper to enforce discovery rules and the memorandum was a witness statement that should have been disclosed	Exclusion was prejudicial because the memorandum was direct, reliable evidence that Mikuski told Pagoni she had given drugs to Massaro; its absence undermined Pagoni’s credibility and swayed the jury	Error in imposing the sanction was harmless: Pagoni still testified to the inconsistent oral statement, the memorandum was of questionable reliability, and the prosecution’s independent physical/eyewitness/text evidence was strong
Prosecutor’s cross‑examination converting Pagoni into an expert on narcotics trade	Cross‑examination was permissible to probe Pagoni’s law‑enforcement background and credibility; any testimony was cumulative	Prosecutorial questioning improperly elicited expert opinion without notice, bolstering state’s case and undermining defense	Even if improper, the questioning was harmless: testimony was largely cumulative, Pagoni’s answers did not uniformly favor the state, and the state’s case was strong

Key Cases Cited

State v. Fernando V., 331 Conn. 201 (Conn. 2019) (error affecting jury’s ability to assess credibility is not harmless where case depends on equivocal evidence)
State v. Qayyum, 344 Conn. 302 (Conn. 2022) (harmless‑error standard for nonconstitutional evidentiary rulings)
State v. Favoccia, 306 Conn. 770 (Conn. 2012) (defendant bears burden to show nonconstitutional evidentiary error was harmful)
State v. Edwards, 325 Conn. 97 (Conn. 2017) (new trial required for improperly admitted expert testimony only if error was harmful)
State v. Cavell, 235 Conn. 711 (Conn. 1996) (improper discovery sanction reviewed for harmlessness)