I think maybe it was downvoted because it misses the point, just as the article misses the point. Behavior change would be nice but the real benefit here is accountability. So what if there were 1.6% (made up number) rate of reported bad behaviors, and now the rate is still 1.6% -- the point is that in those 1.6% of cases, there is now the best kind of evidence to ensure that the facts are represented accurately when these cases are adjudicated. That accurate portrayal of facts will actually protect both cops and citizens.