In State v. Daniels, 180 Conn. 101, 429 A.2d 813 (1980) the Court held that "where counsel for either the state or the defendant intends to argue to the jury that an unfavorable inference be drawn from the absence of a witness at trial, an advance ruling from the trial court should be sought and obtained." 180 Conn. at 113. In the context of a missing witness, a negative inference is drawn because it is assumed that the witness at issue was not called because his testimony would have been adverse to the defendant.