The crash into a home sparked a “heavy fire,” a Los Angeles Fire Department spokesman said.
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...A Los Angeles Police Department spokesperson said the crash was under investigation and that there was no immediate indication regarding its cause.
It was possible, he said, the patient would be subject to a blood draw as part of the police investigation. In California, police don't need a warrant for a blood draw if a person was arrested on a DUI charge prior to the test.
Such arrests can be made based on officers' observations and circumstantial evidence such as drugs or alcohol in a vehicle...