According to the one other source I found, it wasn't the video which led to the charges.
He recorded a subsequent phone call with the police department without notifying them that the call was being recorded. According to Wikipedia, regarding the recording of telephone conversations, New Hampshire is an 'all parties consent' state, and seemingly by his own admission he broke this law. Thus the calls for jury nullification, to ignore a law which they find unjust.
Good question. Here is a complete transcript that I have typed up of the 24 second long phone call that is the controversial call in question. (source: http://www.youtube.com/watch?v=sEhFwI6IyMU)
Patrol Captain Office, can I help you?
Ah yes, I was calling to see if there was a comment about a video that is surfacing on line of Detective Murphy slamming a 17 year old child on top of a table.
He recorded a subsequent phone call with the police department without notifying them that the call was being recorded. According to Wikipedia, regarding the recording of telephone conversations, New Hampshire is an 'all parties consent' state, and seemingly by his own admission he broke this law. Thus the calls for jury nullification, to ignore a law which they find unjust.