Britney Spears was busted for DUI back in March, and now we get to see how the whole thing played out.
TMZ has obtained the full dashcam video of Britney's arrest -- from the moment cops hit the lights to pull her over ... which she took her 3 minutes to do!
The pop star's out of frame for most of the footage, but you can hear her going through the field sobriety test -- including when cops cuffed her -- and seemingly blowing into a breathalyzer as she insists she's not drunk.
Britney Spears threw some shade her mom's way during her arrest for DUI ... mentioning how her mom killed a bicyclist in 1975 -- and claimed she later tried to kill her too!
The pop star talked to cops about Lynneduring her traffic stop on March 4 ... when an officer told her that if she were to kill someone while driving intoxicated, she could be "charged with murder."
Britney replied, "Yes, sir, I know. My mom accidentally killed a man on a bike ... but I never did that before."
At first, she tells the cops she won't get out of her car ... because she feels “invaded” and "harassed" by them -- and that "I haven't done anything wrong."
