How does Washington State Patrol Know If A Fatal Crash Was Caused By A Drugged Driver?

The Revised Code of Washington 46.52.065 requires that “a blood sample be taken from all drivers and all pedestrians who are killed in any traffic [crash] where the death occurred within four hours” for analysis by the state toxicologist “to determine the concentration of alcohol and, where feasible, the presence of drugs or other toxic substances.” This statute has led to statewide testing rates for deceased drivers of almost 90 percent. 
Chris Davis
Award-winning personal injury attorney and founder of Davis Law Group, P.S. in Seattle, Washington.