Certainly DUI would be “misuse” of alcohol, which is disqualifying.
In your opinion. There is no universally accepted definition of ‘misuse of alcohol’ and it is not a term generally used by the medical profession. It means whatever you want it to mean and includes or excludes whatever you fancy. That’s what I mean by poor drafting – good drafting should not use official-sounding terms that in fact have no official meaning and are open to interpretation.
Some quick research suggests that the closest match in DSM-IV is ‘alcohol abuse’. One of the criteria that could lead to a diagnosis was ‘recurrent alcohol-related legal problems’. A single DUI conviction is not, of course, ‘recurrent’. In DSM-5 alcohol abuse was removed and it’s all incorporated into ‘alcohol use disorder’. Notably, the legal problems criteria is no longer a basis for a diagnosis.
The other angle on this is that, in the UK, drink driving is a “criminal offence”. Speeding, for example, isn’t. A ban for totting-up also isn’t. For others in between, this is the first google hit. It will vary according to the country. So if you are asked about “criminal offences” – as appears to be the case in Germany and maybe the US – this can get you.
Even if a pilot license is not affected, your airport pass probably will be. In the UK I don’t know of any GA-usable airport which operates an airport pass but there may be some. I would imagine Exeter or Norwich might be – they are run by the “right” sort of people – but this will affect only those based there.
Certainly DUI would be “misuse” of alcohol
Last Christmas my 3 boys (adults) came over for dinners and emptied my closet of fine Akevitt, several bottles of expensive stuff “shot’ed down”. I thought that was a terrible misuse
“Even if a pilot license is not affected, your airport pass probably will be. In the UK I don’t know of any GA-usable airport which operates an airport pass but there may be some.”
I have an Airside Pass for Inverness EGPE. I believe all the HIAL Airports require them. Also Aberdeen EGPE, Glasgow EGPF and Prestwick EGPK.