Check out the suidies at
www.forcesciencenews.com . Not only what you do not see when stressed, but what you thought you saw that was not there, what you thought you did that the video camera says you either did not do or did differently, etc., etc., etc.
As much as some folks want to label it an apologist program for cops, my opinion is it gives a lot of explanations to stuff everybody wondered about.
stay safe.