I think the Irwin decision was the correct one, despite me being against all DWI stops. The reasons are two-fold. First, in the Irwin case, the police were doing their duty, patrolling their area as is normal. An LEO observed a motorist during his patrol driving fast and pulled him over. They didn't sit in one spot and gather up all motorists in a driving net to then winnow them out based on their attitude(as seen on the video). This is a critical differentiator to me. We have 'reasonable suspicion' and in this case the speeding led to the traffic stop, which uncovered an admitted driver who was drinking. The police then clearly failed in their function, whether you consider it a duty to protect or not, they failed to enforce the law(as LEOs) on the books prohibiting DWI. The result of this failure to enforce led to the proximate deaths of several people.
Which leads to the second reason I fully support this decision. The original law that protects cops and provides them with immunity is based on the ancient concept that the 'king can do anything they want with impunity'(there's a Latin phrase). Well, when we declared our independence from a Monarch that should have been the end of that shyte. But no, the 'crats in govt want it both ways. They want the power of the badge or office, but not the responsibility, so they hide behind some form of special immunity. This can only lead to problems, and it's come up in several other major cases. The Watergate case being one of the most compelling, and why it was completely wrong for Ford to pardon Nixon IN ADVANCE of any trial for malfeasance.
Now, that kind of special immunity is tagged on down to every cop in the street, and the resulting lack of respect, and support for an elite 'ruling class' among us causes more friction. In my perfect world, cops would have NO immunity from any kind of malfeasance, including behavioral. Two counseling session, and the third time, you are out. they may not protect the public, but cops should damn sure serve at the pleasure of the public, and be responsible for their actions, as in Irwin.