Fire departments are increasingly posting photos (and videos) of fires, auto accidents and other significant (or interesting) incidents. Likewise, with the explosion of various social media outlets and small digital cameras, individual department members are posting photos to Facebook, Twitter and elsewhere.

I'm interested in finding materials on the potential legal issues this raises, such as privacy concerns, potential exposure to litigation, and subpoenas or other requests for evidence from litigators. Your insights would be most appreciated.