so, you have 2 guys on bikes. they dont care that "the MAN" is following them. This pisses the cop off (maybe). They look to be following the traffic laws, as they stopped at the stop sign. Then, as people do, they rolled the throttle on and took off for a short distance. it looks like to me they just gunned it from one stop to the next. I ride a harley and I do that sometimes, as do many cars and bikes. So the cop lights them up, and rolls his lights and siren. this startles the one guy who then doesnt negotiate the turn. The other kid stops immediately. has his left hand holding the clutch in, maybe he didnt have time to find neutral. his is in no position (while stradling a bike) to turn his body to the left and pose a danger to the cop. he cant turn to the right because he is holding the clutch in. bang, cop fucked up. you cant go back, but someone needs to pay.