Dorcas's evidence on this point was substantially what Poirot and I had already heard, so I will not repeat it here. 
Dorcas was almost simply repeating what Poirot had said before her.
mnli hypothesis: Dorcas was almost simply repeating what Poirot had said before her. premise: Dorcas's evidence on this point was substantially what Poirot and I had already heard, so I will not repeat it here. 