The Canney Harkness interview re-visited ..
When Detective Canney knocked on the door of 90A Moseley Street in late July 1949 someone already knew what Jessica’s answers would be.
In order for someone to have known her answers they would have to have seen the phone number written on the back of the Rubaiyat.
In order to have seen the Rubaiyat before it was reported found by Chemist Freeman one would need to question Detective Sergeant Leane’s account.
In order to question Detective Leane’s account one would have to believe it was SAPOL who was conducting the parallel investigation and he was in full knowledge of it.
As a train of thought, this one reaches a dead-end in just over a hundred words.