So my question is whether this lad really was "under the influence" of drugs - which is inexcusable when flying, or he had traces in his system - as these are two very different things as BRL points out..
The actual report suggests from blood levels that he might well have been under the influence............
................toxicology revealed
the presence of methylenedioxymethylamphetamime
(MDMA, or ‘Ecstasy’) in the blood, at a concentration of
0.28 milligrams per litre. No other drugs were present.
The level of MDMA measured in the pilot’s blood was
slightly above that usually seen following a typical
recreational dose. The results suggest, therefore, that
the drug is likely to have been taken within a few hours
of the flight, rather than being present as a residue of a
dose taken the night before..
Cusco.