-
The old adage 'you can't prove a negative'. So you can't but there's never been the whispers like there is/was around Coe, Radcliffe and Farah to cause overt suspicion. Also the triple jump is a highly technical discipline rather than just running around in circles....
That said strength and speed would be enhanced by drug use, have many triple-jumpers tested positive?
-
have many triple-jumpers tested positive?
The word "Triple" appears 24 times on this list:
https://en.wikipedia.org/wiki/List_of_doping_cases_in_athletics
What evidence that Edwards was clean?