Justin Bieber's Bodyguard Avoids Felony Charges in DUI Case

Justin Bieber's head of security lucked out BIG time in his DUI case from last year -- avoiding any felony charges after allegedly injuring 2 cops and fleeing the scene.

Law enforcement sources tell TMZ, Bieber's chief bodyguard, Michael Arana, ended up pleading guilty to misdemeanor reckless driving. The 2 misdemeanor charges of DUI and 2 felony charges of fleeing the scene that he was originally facing were dropped.

We're told prosecutors lacked sufficient evidence to prove he'd actually left the scene of the accident. He had already pulled over -- just 150 yards from the impact -- when cops arrived on the scene. They never chased him.

You'll also recall, Arana refused to submit to a breathalyzer or blood test. Sources say Arana didn't show signs of impairment at the scene, so prosecutors dropped the DUI charge.