The other thing to consider is that the .12 BAC rating may have been what was registered with the SD2 (or whatever model is used currently) at the scene of the traffic stop. This is a rating which is inadmissible in court, but can be used as further evidence for the officer to make the arrest. The BAC rating that is admissible will come from the Intoxilyzer or a blood draw. I think Grand Forks primarily relies on the Intoxilyzer in their alcohol arrests. It is very possible that the readings from these two devices can be different.
Obviously, I am just speculating on this because, to the best of knowledge, I don't recall any news reports specifying where the .12 rating was generated. It's just an idea on what can occur in a DUI trial.
Nonetheless, it's nice to have Matt back on the team and I'm happy for him that his life seems to be on a better track than it was this past summer.