The defendant's petition for certification for appeal from the Appellate Court, 29 Conn. App. 394 [AC 10360], is granted, limited to the following issues:
"1. Was the Appellate Court correct in finding that the improper exclusion of impeachment evidence did not constitute a constitutional violation to the defendant's right to confront and cross-examine witnesses under article first, 8 of the Connecticut constitution?
"2. Was the Appellate Court correct in finding harmless error where the trial court had improperly excluded expert testimony, as a discovery sanction, offered to impeach the credibility of an eyewitness identification made by a police officer?"
Denise Derby, in support of the petition.
Rita M. Shair, assistant state's attorney, in opposition.