The Miami Beach PD must have Bieber Fever -- because they seem obsessed with Justin.

The cops have released yet another jailhouse video -- this one showing the singer taking his urinalysis test. Don't get too excited -- you can barely see a thing. Meanwhile, the police tech team is reportedly hard at work editing a second video of Justin urinating. But they've been having a problem blurring out his penis -- because he moves as he twinkles.

So far, the Miami Beach PD has released nearly 10 hours of footage, as well as photos of the Bieb in jail following his DUI arrest.