Interesting set of videos that shows you the limitations of what we can learn from body cameras on police officers. It also raises issues around how our prior knowledge, expectations, and experiences affect what we see when we interpret a given situation.
“This confirms what Professor Stoughton has found in his own presentations with judges, lawyers and students: What we see in police video footage tends to be shaped by what we already believe.
“‘Our interpretation of video is just as subject to cognitive biases as our interpretation of things we see live,’ Professor Stoughton said. ‘People disagree about policing and will continue to disagree about exactly what a video shows.’
“Race can also play a role. While Professor Stoughton’s work did not seek to determine how the race of the driver affected viewers’ conclusions, numerous studies have shown that some sort of conscious or unconscious bias is present in all of us, including law enforcement.”
http://www.nytimes.com/interactive/2016/04/01/us/police-bodycam-video.html