Earlier quoted context omitted.
Also strip personally identifying information for immediate anonymity. A phone serial could be embedded or at least a phone make (mine does phone make. Flickr enjoys this btw). Combine that with who owns the phone serial or used phone make in the area (apparently some phones broadcast such information) and the person can be identified.
> Also strip personally identifying information for immediate anonymity. I question just how anonymous a recording of your interaction with the police can be made. Surely the officers in question will recognize recordings of themselves and have records of just who all they pulled over that day?
Say for example, you caught me killing a puppy with your camera phone. I'm your neighbour so you post the picture online with a hint to location via an anonymous account through many proxies. There's newspaper frontpage outrage and I'm outraged. I investigate and look at the picture file. Lo and behold, I recognise the camera make as yours and know who it is. So it's not only police that you want to protect yourself from.
Disclaimer: I like puppies though :(