Originally Posted by
DaveReidUK
As far as I'm aware, the Egyptian view that there was an explosion on board was not based on having detected explosive residue, but rather on the fact that none of the body parts recovered from any of the passengers or crew were larger than the size of a hand, and the only identification possible was via DNA.
From the article above:
"For its part, the BEA’s Egyptian counterpart announced in December 2016, the discovery of traces of explosive on human remains. It stated that, in accordance with Egyptian legislation, this finding led it to transfer the file to the Egyptian Attorney General who would from now on be responsible for carrying out the investigation."
No one else found these "traces" except the Egyptians