Massachusetts Appeals Court May 7, 2001, No. 99-P-1175 (Commonwealth v. Campbell)

Cypher, J.

Richard Campbell appeals from his conviction for assault and battery on Deputy Sheriff Melvin Massucco of the *480Nashua Street jail.1 The defendant claims (1) that the judge erred when he excluded the defendant’s testimony regarding problems between the defendant and Massucco alleged to have occurred earlier on the day of the offense; and (2) that the judge abused his discretion when