Lindsay Lohan had been drinking and had cocaine in her system when she crashed her car last month.
The 'Mean Girls' star was found to be twice over the California drink-drive limit and had traces of cocaine in her bloodstream at the time of the crash in Hollywood's Sunset Boulevard on May 26, according to a toxicology report.
Police could now present the new evidence to the Los Angeles District Attorney.
The police report filed at the time of the crash noted a "usable amount" of cocaine in Lohan's Mercedes Benz and the actress was later arrested for driving under the influence of alcohol.
The 20-year-old star, who is not yet old enough to legally drink in the US, fled the scene and was later taken to hospital to be treated for minor injuries. Police officers then arrested her a few days later.
Soon after the incident, Lohan checked into rehab at Malibu's Promises Centre, where she recently opted for an extended care programme.
Lohan's lawyer Blair Berk said: "It's highly inappropriate for me to discuss a pending case. It is extremely unprofessional for law enforcement to do it." | 
