Police surveillance of cellphone and Wi-Fi access points is standard procedure at all protests.
The Raspberry Pi PirateBox enables protesters to re-purpose that surveillance to share mis-leading data with police officers, anonymously.
Using prior protests as a model, even re-using audio/video footage, create “fake” reports and imagery for posting to your “My Little Protest News Site.” (Pick a less obvious name.)
With any luck, news media reps will be picking up stories your news site, which will increase the legitimacy of your “fake” reports. Not to mention adding to the general confusion.
Mix in true but too late to be useful news and even some truthful, prior to happening calls for movement so your reports are deemed mostly credible.
Predicting flare gun attacks on reserve formations, only moments before it happens, will go a long way to earning your site credibility with its next prediction of an uptick in action.
The legality of distributing fake reports and use of flare guns at protests varies from jurisdiction to jurisdiction. Always consult with legal counsel about such conduct.