on the job, Guard Duck pointed to this article from Oregon:
After Mike Tabor turned his videocamera on two Portland cops rousting a couple of men on a downtown sidewalk, one cop seized his camera and gave him a ticket, saying he'd broken the law by recording the officers without their permission.
The Multnomah County District Attorney's Office declined to prosecute, and now Tabor is trying to force the Portland Police Bureau to take a formal position on whether it's OK for civilians to videotape cops -- with sound -- in public places.
A little further down we find this:
In 1991, then-police chief Tom Potter issued a training bulletin stating that the public had the right to record video and audio of police arresting suspects in a public place. Woboril, Schmautz and Police Chief Rosie Sizer weren't aware of the bulletin, but Tabor's attorney, Haile, dug up it up in his research.
Haile said he wants the bureau to specify that police stops -- not just arrests -- can be recorded. He also wants the policy put in the bureau's policy and procedures manual, so it won't be forgotten.
So there was actually something put on on the subject, but the officers were either not familiar with it or didn't care, make your choice.
He's right; there needs to be something in the official "What you can and cannot do, Officer Friendly" rules on this.