I went to the last DRE school in May of this year at Hanscom AFB. It was two weeks long and we're not certified yet because we need twelve evaluations and pass the national final exam. It's a very tough and demanding course and allot of us thought we were done, I mean it's very intense academically and you have to study quite a bit. Great school and got two OUI arrests and both times found other drugs too, which was from the training. Next DRE class will be next year sometime(in MASS anyway). Sgt.Decker is the man, he is great. You have to apply, give a resume and have full department cooperation and sponsorship to attend. Not everyone gets in, my clas had about 25 people and some were out of state and five were military PD. Good luck