People v. Montalvo

—Judgment, Supreme Court, New York County (Mary McGowan Davis, J.), rendered June 21, 1995, convicting defendant, after a jury trial, of criminal possession of a controlled substance in the third degree, and sentencing him, as a second felony offender, to a term of 5 to 10 years, unanimously affirmed.

The court properly refused defendant’s request to qualify a backup officer as an expert witness. Defendant’s offer of proof did not establish that the proposed expert testimony required “ ‘professional or technical knowledge, possessed by the expert and beyond the ken of the typical juror’ ”…