I. Does the warrantless insertion of a key into a locked storage unit in a secure room within a residential apartment building, in order to obtain identifying information, constitute an unreasonable search in violation of the Fourth Amendment? 

II. Does the Sixth Amendment right to counsel attach during a pre-indictment conversation with an undercover agent if the government has already committed itself to prosecuting that individual?

III. Should a defendant be permitted to offer exculpatory grand jury testimony under Federal Rule of Evidence 804(b)(1) when the declarant-witness is unavailable within the meaning of Federal Rule of Evidence 804(a)?