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Alcohol/Drug Detection Guide

Informed

Driver Observations

Chances in 100 of nighttime driver with BAC equal to or greater than 0.10%


Driver Error %
Turning with wide radius 65
Straddling center or lane marker 65
Appearing to be drunk 60
Almost striking object or vehicle 60
Weaving 60
Driving on other than designated road 55
Swerving 55
Slow speed (Over 10 m.p.h. below posted speed) 50
Following to closely 50
Drifting 50
Tires on center or lane marker 45
Breaking erratically 45
Driving into opposing / crossing traffic 45
Signaling inconsistent with actions 40
Slow response to traffic signals 40
Stopping inappropriately 35
Turning abruptly or illegally 35
Accelerating or decelerating rapidly 30
Headlights off 30


Next: "Controlled Substances & Indicators ":http://policelink.monster.com/training/articles/9736-controlled-substances-indicators

Previous: High Risk Traffic Stop Procedure

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© 2008, Informed


+5
  • Stealth_max50

    rrh8051

    over 5 years ago

    14 Comments

    This are great observations for getting those drunks

  • Bad3_max50

    wolfspirit

    almost 6 years ago

    36 Comments

    Very informative.

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