"The Witness for the Prosecution" is a short story and play by British author Agatha Christie. The story was initially published as "Traitor's Hands" in Flynn's, a weekly pulp magazine, in the edition of 31 January 1925.[1]
In 1933, the story was published for the first time as "The Witness for the Prosecution" in the collection The Hound of Death that appeared only in the United Kingdom. In 1948, it was finally published in the United States under that title in the collection The Witness for the Prosecution and Other Stories. The story has been adapted for stage, film and television.