Whether the admission of a non-testifying firearms examiner's report and substitute analyst testimony violated the Confrontation Clause

QUESTIONS PRESENTED I. Whether the admission of a report authored by a non-testifying firearms examiner, and expert testimony from a substitute analyst concerning the findings of the same, violated Confrontation Clause framework where the report and testimony were offered to establish an essential element of charged offenses; no other evidence was introduced to prove the element; and during summation, the prosecutor referenced the report and testimony for the truth of the matter asserted? Il. Whether a citizen is seized, within the meaning of the Fourth Amendment, where uniformed officers approach him and tell him that he is being held as a witness; place and lock him in the back of a squad car; and condition release on the making of a requested statement? i