SFST? Asking the right questions? What did the driver do wrong during the FST? Do
I have PC? Should I use a PBT?
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DWI Detection: Phase III
DWI Detection: Phase I
Preliminary Driver Evaluation
Routine Traffic Check
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San Diego Percentages
San Diego FST validation—NHSTA accurate
a. HGN was 88%
b. WAT 79%
c. OLS 83%
3 tests for possible DUI
1) Horizontal Gaze Nystagmus (HGN)
2) One Leg Stand (OLS)
3) Walk and Turn (WAT)