These predictions were about political outcomes and not nearly as ambiguous as your next call. Law enforcement is about anticipating, observing, reacting, controlling, and recording. You not only have to make split-second decisions with partial information, but record "after the fact" recollections in documents that will later reappear in criminal and civil cases. So you will go into a situation loaded with stress and uncertainty and later be judged by supervisors, managers, prosecutors, defense counsel, judges, and jurors on not only how you handled the situation, but how you remembered it as well. Therein, Dr. Watson, lies the rub!
While in fiction Sherlock Holmes' magnificent intuitive leaps lead to remarkable arrests, we would make a huge number of mental errors if we tried the same tricks. Worse, we might make assumptions that would get us or someone else hurt. I am not saying you shouldn’t trust your instincts—absolutely follow your gut—but understand you have to be ready to reevaluate and react in a fraction of a second. It's what happens to your memory of the events once they've concluded that can cause problems and make evaluating events in hindsight very tough.
In retrospect, everything is clear and obvious. In fact, I was just reading
"Everything is Obvious: Once You Know the Answer"
by Duncan Watts and, as his title says, what we often see as a common sense outcome was quite possibly the result of a completely unpredictable event being reviewed with "hindsight bias." Hindsight bias is also known as the "we knew it all along" effect. I find very often we judge officer actions with just such a bias.
Take a shooting, for instance. No one is ever going to get a call to "go to 110 W. Elm and shoot the occupant." But after a shooting at 110 W. Elm, many of the officers may remember it as having been pretty "obvious" that things were sideways and shooting was coming. This is true "hindsight bias" in which you forget anything that isn't relevant to the ending of the story, and it often makes writing the story a lot tougher. Hindsight bias makes it "seem" that what happened was a foregone conclusion. Yet in this example, the officers had faced similar situations, often hundreds of times, with different results.
Each of us suffers from hindsight bias almost daily. Most of the time it is as mundane as thinking, I knew they would win, or watching an old thriller you've enjoyed many times before and not even realizing the movie has become a completely different experience because you know the ending and the plot twists.