Commonwealth v. Monteiro

*478 In this interlocutory appeal by the Commonwealth, we must decide whether the *1232 information provided by a first-time, confidential police informant (CI) was sufficiently corroborated by a single, imperfectly executed controlled "buy" of cocaine for the purposes of establishing probable cause for the issuance of a warrant to search the defendant's apartment. We conclude that the affidavit was sufficient to establish the CI's basis of knowledge and veracity, and that the information provided by the CI, along *479 with information gathered by the police, as set forth in the affidavit in support of…