Here the Oakland Police Department claims they were attacked by protesters.
Do they really not know they are being recorded? In some cases on livestream?
Update on Occupy Activities in Downtown Oakland – 4:30 pm(PDF)
Oakland, CA – By 12 pm, a crowd of approximately 250 had gathered in Frank
Ogawa Plaza for the Occupy rally. Just before 1:30 pm, the group started
marching southbound on Broadway. As the group of approximately 450
marched, traffic disruptions occurred on downtown streets. At approximately
2:15 pm, some of the marchers entered the campus of Laney College.
At 2:30 pm, marchers began tearing down perimeter fences around the Henry J.
Kaiser Convention Center.
At approximately 2:50 pm, the first dispersal order
was given as the crowd began destroying construction equipment and fencing.
Officers were pelted with bottles, metal pipe, rocks, spray cans, improvised
explosive devices and burning flares. Oakland Police Department deployed
smoke and tear gas.
By 4 pm, the bulk of the Occupy crowd of approximately 500 has returned to
Frank Ogawa Plaza.
As of this release, 19 protesters have been arrested. Most of the arrests were
made on Oak Street when protesters ignored the dispersal order and assaulted
officers. Three officers are confirmed to have been injured.
Mutual aid has been requested.
See for yourself that the only objects thrown at the Oakland Police department were after they were fired upon and began returning gas canisters to the police line.
From OakFoSho's feed 14:00 Minutes in is when the police attack:
BTW OPD shooting tear gas up wind is a tactical fail. But your learning curve is slow and you will be policing with radios only soon since you obviously do not know how to handle weapons in a manner that does not escalate force.