(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.
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Justin Bieber was "excited," "insulting," "cocky" and "used profanity," police say
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"Yeah, we were smoking all night at the studio," Bieber told police, report says
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Bieber charged in Toronto, allegedly struck a limo driver on the back of the head
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An L.A. prosecutor is expected to decide soon whether he'll be charged in egging
@placeholder's legal limit for drivers under the drinking age of 21 is .02.