http://www.zdnet.com/blog/storage/a-...18?tag=nl.e550
In short - person records 3 Boston cops arresting someone in the nation's oldest public park (Boston Common). Cops arrest videographer for illegal wiretapping and even allowing a suspect to escape.
Eventually, the videographer files suit claiming his 1st and 4th Ammendment rights were violated.
The court has AGREED saying that recording public officials IN PUBLIC doing their OFFICIAL DUTIES is PUBLIC and may be recorded.