There is no way of verifying this & knowing the rumour mill down here it could be rubbish but as I've heard from about 5 unconnected people including one in Saudi thought it might be worth posting.
Supposedly she 'lost it' / air rage / panic attack whatever on the inbound & was 'attended' by airport security on arrival. The 'problem' didn't improve so the police were called & she was arrested. Apparently a urine test is standard on arrest & that's where the drug bit started.
If this is wrong apologies Tracey but thats what the rumour mill is saying.
Again, if (big IF) this is true what would have happened to a pax in a similar 'air rage' situation in Europe or the USA?