Here’s a couple informative videos presented by a lawyer and a cop.
Here’s the summary:
DON’T TALK TO COPS, AND NEVER ADMIT TO ANYTHING!

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This guy just happened to be in the wrong place at the wrong time. He was apparently nearby while the recent G20 protest was taking place in London. Police determined he wasn’t getting the f*ck out of their way fast enough, so they shoved him to the ground. (like that would make him move faster.)
Moments [...]

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