Wiggy,
Yes, La Depeche. You are right in translating "a pu être détecté" as "may have been detected", so not definite, but intereting that he has issued a statement. The newspaper seems to be more definite in its interpretation.
Edited to add: BBC also now reporting the BEA statement.
Last edited by Life of Leisure; 1st Jun 2016 at 15:45.