Thanks, I didn't find the original link and I didn't remember the specific charges.
So to answer your questions - both police and people like (and including) George Zimmerman lie.
Hey look, we found some common ground.

Although I would argue there are better reasons to suspect that Zimmerman was most likely at fault than there are to believe that an essentially random law enforcement officer would lie about what happened.
Not having enacted the labor in reading this entire thread, I have no idea whether you would agree with that or not.