Joe Giacalone, a professor at the John Jay College of Criminal Justice and a retired New York police sergeant, said it was “premature” for Sheriff Villanueva to determine the crash was an accident just a day later.
“The blood test could give us a whole other insight,” Mr Giacalone said, noting some drugs were not necessarily detectable by observation. “Because it’s Tiger Woods, people are going to demand answers. You have to dot your I’s and cross your T’s.”
Crash investigations typically include interviews of first responders and bystanders as well as inspections of the road and the vehicle, including photographing and measuring the scene and checking to see if the vehicle had defects or malfunctions, according to William Peppard, a retired New Jersey police detective who has served as a crash investigator.