I have seen people and some cops with their phone mounted on their chest or shoulder with the camera pointing forward. Also a phone can record audio even if it

I have seen people and some cops with their phone mounted on their chest or shoulder with the camera pointing forward. Also a phone can record audio even if it's hidden (http://www.berkeley.edu/news/media/releases/2005/09/14_key.shtml http://www.berkeley.edu/news/media/releases/2005/09/14_key.s...).