In Christopher v. State, 583 So. 2d 642, 646 (Fla. 1991), the Florida Supreme Court made clear that "when the state offers in evidence a part of a confession or admission against interest, the defendant is entitled to bring out on cross-examination the entire confession or admission." The only limitation is that cross-examination must always "either relate to credibility or be germane to the matters brought out on direct examination."