Commonwealth v. Sanford, 951 N.E.2d 922

Defendant arrested after police recovered a Star 9mm handgun with an obliterated serial number from the glove box of a vehicle during a stop.
Multiple charges related to firearm possession and defacing a firearm were brought under G. L. c. 269, §§ 10(a), 10(h), 11C; a fifth charge under c. 94C was not on appeal.
Defendant moved to preserve all evidence, to notify defense counsel before destruction testing, and to allow his ballistics expert to observe testing.
The court issued discovery sanctions excluding all evidence of the firearm and all ballistics testimony, following a nonevidentiary hearing.
The Commonwealth sought interlocutory appellate review; the Appeals Court reversed; the Supreme Judicial Court vacates the sanctions and remands for further proceedings.
Key factual backdrop includes delays in ballistics testing, lack of defense presence at initial test, and a later test conducted without timely notice to defense, with questions about the firearm’s operability and potential exculpatory evidence.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Whether exclusion of firearm and ballistics evidence was proper sanctions for discovery violations	Commonwealth contends sanctions appropriate due to discovery breach; aim to cure prejudice	Sanctions excessive; misconduct taints fair trial; burden to show prejudice/operability	Vacated; remanded for further proceedings consistent with Williams framework
Whether Neal/Williams standards require showing exculpatory potential or bad faith to warrant remedy	Williams threshold satisfied by potential exculpatory evidence	Need concrete evidence of exculpation or bad faith to shift burden	Remand to develop record on exculpatory possibility and culpability
Whether the record supports a finding of bad faith or reckless disregard by the Commonwealth	Disregard of discovery orders could imply bad faith	Record unclear on level of culpability; negligence noted but not established	Remanded to determine culpability level and potentially shift burden accordingly

Commonwealth v. Williams, 455 Mass. 706 (2010) (framework for suppression where exculpatory evidence may be destroyed; threshold and balancing tests)
Commonwealth v. Neal, 392 Mass. 1 (1984) (exculpatory evidence requires concrete showing; not mere speculation)
Commonwealth v. Dinkins, 440 Mass. 715 (2004) (cannot rely on mere possibility; need concrete basis for exculpatory claim)
Commonwealth v. Cintron, 438 Mass. 779 (2003) (exculpatory potential must be grounded in evidence; not speculative)
Commonwealth v. Willie, 400 Mass. 427 (1987) (bad faith or reckless disregard standard; heightened scrutiny for discovery violations)
Commonwealth v. Lam Hue To, 391 Mass. 301 (1984) (remedy rules and procedures for suppression motions; appellate review)
Commonwealth v. Carney, 458 Mass. 418 (2010) (sanctions under Rule 14(c); remedial, tailored to cure prejudice; not punitive)