Well, I would wonder if he admitted to drinking before the class?

Now here is the shocker for all of you non-police. Part of the class is to drink alcohol (During a practice exercise) so you can be tested by the other trainees. So, they do a baseline and that is where they caught him. I guess my question would be how was he to get home after driving there, if the policy is "against operating a county-owned vehicle after the consuming any amount of alcohol".

The Sheriff knows that offices drink at the orginal training and re-certiy classes, so why was he driving period?

Sheriff Smith should be suspended for allowing the use of a county vechile to go to this training.