The real risks of drug driving and drunk driving

With the NSW police tripling their drug-driving tests, especially targeting cannabis, it's worth noting the actual risks involved.

In summary, cannabis increases the risk of a fatal accident: 1.8x

Opioids (which are legal): 3x

Stimulants including meth: 3.7x

Benzos (Valium etc, also legal): 4.8x

Alcohol at .02 Blood Alcohol Content (BAC) - which is legal for most drivers: 4x

Alcohol at 0.8 BAC: 13x

Alcohol at 0.16 BAC: 35x

[As an interesting aside, people with Sleep Apnea are 7-8 times more likely to crash a car than people without the condition - As reported on ABC's PM program 4/7/2016]

Full details below courtesy of Paul Dessauer:

Drug use and fatal motor vehicle crashes:
A case-control study.
Guohua Li et al
Accident Analysis and Prevention Sept 2013

<<< ABSTRACT Drugged driving is a serious safety concern, but its role in motor vehicle crashes has not been adequately studied.