That part is quite unclear.
I think they're referring to the day of the crash.
How she was on that day, only slightly over the limit- you wouldn't have known she was intoxicated etc.
I thought the court case was something that was coming up in the future and the discussion was how that may have been playing on her mind .
Tom was playing down it's importance saying that she knew it would only be a fine.
When the detective chipped in with the 1 year ban I took that to mean that legally based on the circumstances a 1 year ban would be applied
I don't know anything about the penalties applied for DUIs but perhaps there's a scale and perhaps it wasn't her first offence.