This is why I like to ask for video footage: http://www.cnn.com/2016/02/25/us/new-york-albany-assaults/index.html
Cameras are a wonderful tool, they are witnesses that can't have an agenda. Not long ago, they helped bring to justice someone who had violated the first amendment rights of student journalists at a Missouri campus: http://www.foxnews.com/us/2016/02/25/melissa-click-fired-by-university-missouri.html
They've also helped put a murderer behind bars: http://abcnews.go.com/US/walter-scott-shooting-breaking-witness-video-frame-frame/story?id=30159871
Cameras are a typical feature of your everyday smart phones and those are everywhere nowadays. As a result, I'm optimistic that when it comes to criminal or civil cases, we'll rely less on pure testimony alone, we'll encounter less 'he said-she said' cases, and more issues will be resolved by allowing the cameras to do all the talking.
