Cosenza v. City of Worcester, MA, 120 F.4th 30

Natale Cosenza was convicted in 2002 in Massachusetts state court for armed burglary and assault, based primarily on a witness identification from a police-administered photo array.
Later changes in state law (regarding eyewitness identification) led to his conviction being overturned and a new trial ordered in 2016, with the photo array evidence suppressed and charges ultimately dropped.
In 2018, Cosenza filed a federal civil rights lawsuit under § 1983 against the City of Worcester, claiming the City’s failure to train officers on proper investigative techniques (especially photo arrays) constituted deliberate indifference to his constitutional rights.
The district court granted summary judgment for the City, finding no evidence of an affirmative municipal policy or sufficiently obvious training deficiency.
On appeal, the First Circuit reviewed whether the City of Worcester could be liable for the alleged constitutional violations based on training practices, fabrication, and suppression of evidence.

Issue	Plaintiff’s Argument	Defendant’s Argument	Held
Failure to Train on Photo Arrays	Worcester did not train police in proper photo array procedures, resulting in Cosenza’s constitutional injury	Police received training at academy; no policy or pattern of not training; 2002 law did not require stricter procedures	No deliberate indifference; no policy or pattern shown; summary judgment for City affirmed
Single-Incident Liability	Need for better training was obvious, so single-incident liability applies	No evidence that consequences were obvious or that additional training was constitutionally required at the time	City not liable under single-incident theory; standard not met
Failure to Prevent Evidence Fabrication/Suppression	City’s policies/practices caused detectives to fabricate/suppress evidence	No express policy or widespread practice of fabricating/suppressing evidence; preferred practices required disclosure to DA	No proof of policy or training failure; summary judgment for City
Reliance on Evolving Best Practices/Model Standards	1990s DOJ/IACP publications show Worcester should have known of need for stricter procedures	Recommendations were not constitutional requirements in 2002; prevailing law was less stringent	Recommendations not controlling; City not on notice of constitutional need

Monell v. N.Y.C. Dep't of Soc. Servs., 436 U.S. 658 (municipal liability requires action pursuant to official policy)
Connick v. Thompson, 563 U.S. 51 (municipal liability for failure to train requires deliberate indifference)
City of Canton v. Harris, 489 U.S. 378 (single-incident theory applies only if training inadequacy is obvious)
Bd. of Cnty. Comm'rs of Bryan Cnty. v. Brown, 520 U.S. 397 (deliberate indifference standard for municipal liability)
Commonwealth v. Silva-Santiago, 906 N.E.2d 299 (Massachusetts standards on eyewitness identification evolved after 2002)
Commonwealth v. Gomes, 22 N.E.3d 897 (Massachusetts adopts heightened standards for eyewitness ID)