When I worked in a steel mill we were subject to random urinalysis and breathalyzer tests. .04% BAC would get you sent home for the day and a written warning. .08% BAC would get you fired.
Well, first, this entire threat is about a flight attendant, and I have no idea what the flight attendant requirements are,
Both pilots and flight attendants are subject to random drug and alcohol screening. It’s part of the job. It can be when you report for duty or it can be after the flight is complet.
For pilots, the FAA requires a minimum of eight hours between the last consumption of alcohol and reporting for duty. Not the actual flight, but, the moment you step onto airport property.
The maximum alcohol level is 0.0. In any country.
Anything over zero is going to get you arrested, prosecuted, and quite likely, sentenced to hard time.
For example:
https://www.bbc.com/news/uk-46388829
As an interesting sidenote to the above story, I was on a crew van in London about a month later. The van driver asked me if I had seen that news story, and I had not. The Van driver claimed that he was the one that had alerted authorities to the condition of this JAL pilot.
I have no way to determine the veracity of this van driver story.
However, I will say, that pilots are under scrutiny from everyone, the van driver, the security guard, the gate agent, literally everyone is watching us.