If, while testifying, a witness uses a writing or other item to refresh memory, any party is entitled to inspect it, to examine the witness about it, and to introduce in evidence those portions which relate to the testimony of the witness for the limited purpose of impeaching the witness as to whether the item in fact refreshes the witness's recollection.
Md. R. Evid. 5-612
This Rule is derived from F.R.Ev. 612.