We have numbers of threads around here where police try and stop, do stop, arrest people and seize they property because the citizen was filming them.
"Landmark Settlement Reached In Preakness Arrest Case"
http://baltimore.cbslocal.com/2014/0...s-arrest-case/
'...Now, four years and an ACLU-backed lawsuit later, city police agreed to a sweeping settlement: money to Sharp and his attorneys, a formal written apology from the police commissioner and, most importantly, a new department policy spelling out expectations of city officers being recorded..."
This is Baltimore and adds to a few other cases here and there but still many don't get it.