Does this count as 'disciplinary proceedings'?

Location: UKI had an investigation meeting at a retail job at a fairly large chain for selling alcohol I shouldn't have to a drunk person. (very serious and illegal but didnt end up on my record). I worked there part time for a few months, and I am searching for professional roles as I have graduated.After the investigation meeting, I was told I would have a disciplinary meeting. I resigned before the disciplinary meeting happened and it didn't continue.Now that I am applying to graduate jobs, do I answer yes or no to 'Have you previously been subject to disciplinary proceedings?'I have also left this job off my CV but I am paranoid they will find somehow find out I worked there and what happened - especially as I want to work in the Civil Service.- I answered 'no' in whether ive been subject to a disciplinary meeting because it didnt happen.- Will an employer find out this has happened?- Is there a database someone can see to see I worked in retail or what i did? espeically as i worked in a large chain.- Do I have to answer yes if they ask if i have had an investigation against me?- does it make a difference im applying to civil service roles and I dont mention this job or what happened at all?- after how many years does this become completely irrelevant?*basically can anyone find out?*im completely petrified.