‘Cocky’ Justin Bieber tested positive for pot, Xanax, police docs say

Updated 8:24 PM EST, Thu January 30, 2014

Story highlights

Justin Bieber was "excited," "insulting," "cocky" and "used profanity," police say

"Yeah, we were smoking all night at the studio," Bieber told police, report says

Bieber charged in Toronto, allegedly struck a limo driver on the back of the head

An L.A. prosecutor is expected to decide soon whether he'll be charged in egging

(CNN) —  

Justin Bieber was under the influence of alcohol, pot and Xanax when police stopped him for drag racing in Miami Beach last week, police documents allege.

“Yeah, we were smoking all night at the studio,” the singer told a police officer who told him he “reeked of marijuana,” according to documents released Thursday.

Bieber was “excited,” “talkative,” “insulting” and “cocky” and “used profanity,” according to a intoxication evaluation conducted by police in the Florida city.

His speech was mumbled, his pupils dilated, his face flushed and his eyes bloodshot, the assessment said.

The lab test results and details of Bieber’s sobriety tests were released just hours after the 19-year-old singer was booked on an assault charge in Canada, accused of hitting his limousine driver in Toronto a month ago.

Bieber, who will turn 20 in four weeks, apparently sought refuge Wednesday night in Stratford, the Canadian town where he grew up before becoming a pop star.

His father tweeted a photo of Bieber asleep in a bed with Justin’s younger half brother, Jaxon. The Twitter message posted by @JeremyBieber read: “Safe and sound #homesweethome”

Earlier Wednesday, Bieber’s lawyer entered a “not guilty” plea to the Florida charges of DUI, resisting arrest and driving with an expired license, according to court records.

The prospect of a third criminal arrest for Bieber hangs on a decision expected as soon as next week, after detectives investigating an alleged egg attack on his California neighbor meet again with a Los Angeles prosecutor.

Bieber told police in Miami Beach