A woman was caught on video playing both sides of this week's protests against Anaheim police on the same day and in the same clothes.

The Orange County city has become the epicenter of a protest against police brutality in the last week in the wake of the death of Manuel Diaz, an unarmed man who was fatally shot by police after a short foot chase. The protests were sparked by the shooting itself and the violent police response to residents asking hard questions about the shooting.

The woman—a blonde woman in a light blue shirt and black skirt whose identity is unknown—caught the attention of protesters when she stood with the police line and verbally defended officers' actions and shouted pro-police slogans, according to the OC Weekly. Here's a video of the woman standing with the police line on YouTube while being shouted down by protesters:



A short while later the same woman wearing the same outfit was caught on a Ustream video protesting the police and shouting anti-police slogans. She appears on camera just after the 4-minute mark:





Video streaming by Ustream

Witnesses told the OC Weekly that she also threw water bottles at police, but that was not caught on video.

OC Weekly claims the videos (along with a witness claiming she had a badge number tatted on her wrist) are "proof" that this woman is a police plant.

Now we don't doubt that some of the protesters in Anaheim are actually undercover cops—just last year a leak revealed that LAPD sent cops undercover at Occupy L.A. and in Orange County a Garden Grove police officer admitted to going undercover at a protest.

However, we're not sure why a police officer (or someone directly hired by police) would go undercover to play both sides of the protest in a very high-profile manner, wearing the same exact clothes, on the exact same day. Doing this would defeat the whole purpose of being undercover.

But if you know anything about this woman or police tactics in this case, we'd love to hear from you.

UPDATED 8/3: A woman claiming to be the mystery protester reached out to LAist. She denies being a police plant or even pro-cop.