For John, BLUF: Yes, you can film Police doing their duty. even in Fall River. Nothing to see here; just move along.
"Fall River Man Arrested For Videotaping Police Officer". The man, apparently on his front porch, was videoing a police officer on a paid detail. So reports CBS Local Channel 8. Also reported is that the video phone was confiscated and the video deleted.
Assuming the news report is pretty close to correct, I suggest the following two points:
First, the Mayor, Mr Willam A Flanagan, needs to invite the Chief of Police, Mr Daniel Racine, up to his office and privately explain to him how the cow ate the cabbage. By now it should be a common place that a citizen can videotape the police. Then the two city officials need to agree on the kind of deal to cut with the man videotaping from his front porch (that is to say, a US Citizen).
Second, the man on his front porch should be offered a formal public apology by both the Chief of Police and the Police Officer and $500 for the loss of his phone and videos (to be paid for by the City, not the Police Officer).♠
Regards — Cliff
♠ But, the same should apply if he is an illegal resident.