The boundary between legitimate proofing and impermissible coaching is crossed only when the course taken by the prosecutor has the effect of suggesting to the witness the evidence that should be given, either expressly or implicitly. Showing a prospective witness their earlier recorded interview and inviting comment is permissible; showing a child complainant a photograph of the accused that is inconsistent with the child's earlier description is inappropriate but does not necessarily taint the evidence if the child adheres to their original account. An appellant cannot complain on appeal about the failure to gather forensic evidence (such as DNA testing of a sample) where no request was made before or during trial and the complaint is entirely speculative.
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