Judgment, Supreme Court, Bronx County (Frank Diaz, J.), rendered March 22, 1990, which convicted defendant, after a jury trial, of robbery in the first degree, and sentenced him as a predicate felon to an indeterminate term of imprisonment of 8 to 16 years, unanimously affirmed.
The statements purportedly made by defendant were sufficiently corroborated to satisfy the requirements of CPL 60.50. The statute is satisfied "by the production of some proof, of whatever weight, that a crime was committed by someone” (People v Daniels,
We also reject defendant’s pro se posttrial contention made pursuant to CPL 330.40, that he was denied effective assistance of counsel because of counsel’s failure to call defendant’s mother and brother as alibi witnesses. On consideration of the motion, defense counsel stated, "After discussing the case with both those individuals, suffice it to say, Your Honor, it was my judgment that putting them on as alibi witnesses would be a serious mistake.” Counsel stated that this strategy was discussed with the defendant, which is confirmed by the defendant’s own statements upon the record. A claim of ineffective assistance of counsel will not lie where the purported failures of counsel are the result of a calculated trial strategy which, in the final analysis does not work (see, People v Satterfield,
