Field Sobriety Tests For the Marine Environment
 
<ul><li>The Southern California Research Institute (SCRI) began validating field sobriety tests in the late 70’s </li></ul>
<ul><li>In 1987, the USCG studied the relationships between the “afloat” tests and the validated “ashore” tests </li></ul>
<ul><li>The current NASBLA BUI enforcement curriculum was developed based on these studies,  best practices and case law  ...
Validating Field Sobriety Tests
<ul><li>Identifying and establishing a battery of standardized field sobriety tests that can be administered in a marine e...
<ul><li>NASBLA initiated the grant process in 2004 </li></ul><ul><li>The 3 year study was designed in  phases; </li></ul><...
<ul><li>SCRI reviewed over 1,100 BUI arrest reports from member states; </li></ul><ul><li>Using test subjects 13 exercises...
<ul><li>Double-blind protocols were utilized; </li></ul><ul><ul><li>Test subjects were isolated and external clues were mi...
<ul><li>Horizontal Gaze Nystagmus .  Officers evaluate the involuntary jerking of each eye independently, as the subject f...
<ul><li>Palm Pat .  The PP test requires the subject to place both hands, palms together in front of them. The top hand ro...
<ul><li>Study site was Lake of the Ozarks, Missouri </li></ul><ul><ul><li>June 26 thru September 7, 2009 </li></ul></ul><u...
<ul><li>Positive HGN, FTN, PP, and HC tests indicate a 91% probability that the BUI suspect has a BAC ≥ .08  </li></ul><ul...
<ul><li>Coordinate with NHTSA, US DOT, USCG and IACP for curriculum development </li></ul><ul><li>Develop a BUI training c...
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Standardized field sobriety tests

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  • Finger to nose, Finger to Finger, Alphabet Recital, Skip Alphabet, Backwards Count, Palm Pat, Finger Count, Time Estimation, X’s and O’s, Digit Span, Hand Coordination, Word Substitution, Word Pairs, Numbers and Colors, Word-hand combinations, Pictures and Numbers. 33 officers evaluated performance on 147 test subjects, dosed using double-blind protocols
  • 33 officers evaluated performance on 147 test subjects, dosed using double-blind protocols (largest scale laboratory testing done to date) Results were lower than expected The highest BAC was .110 and 25% of the test subjects
  • Standardized field sobriety tests

    1. 1. Field Sobriety Tests For the Marine Environment
    2. 3. <ul><li>The Southern California Research Institute (SCRI) began validating field sobriety tests in the late 70’s </li></ul>
    3. 4. <ul><li>In 1987, the USCG studied the relationships between the “afloat” tests and the validated “ashore” tests </li></ul>
    4. 5. <ul><li>The current NASBLA BUI enforcement curriculum was developed based on these studies, best practices and case law </li></ul>
    5. 6. Validating Field Sobriety Tests
    6. 7. <ul><li>Identifying and establishing a battery of standardized field sobriety tests that can be administered in a marine environment; </li></ul><ul><li>Validate the afloat field sobriety tests to create a nationally accepted standard </li></ul>
    7. 8. <ul><li>NASBLA initiated the grant process in 2004 </li></ul><ul><li>The 3 year study was designed in phases; </li></ul><ul><ul><ul><li>Review current practices and evaluate the most alcohol sensitive tests </li></ul></ul></ul><ul><ul><ul><li>Identify a battery of 4 tests using scientific methodology </li></ul></ul></ul><ul><ul><ul><li>Field validate the test battery in the marine environment </li></ul></ul></ul><ul><li>Peer review and defending the study results </li></ul>
    8. 9. <ul><li>SCRI reviewed over 1,100 BUI arrest reports from member states; </li></ul><ul><li>Using test subjects 13 exercises were evaluated for alcohol sensitivity; </li></ul><ul><li>Six tests were identified for further studies </li></ul><ul><ul><li>HGN </li></ul></ul><ul><ul><li>Finger to Nose </li></ul></ul><ul><ul><li>Palm Pat </li></ul></ul><ul><ul><li>Finger Count </li></ul></ul><ul><ul><li>Time Estimation </li></ul></ul><ul><ul><li>Hand Coordination </li></ul></ul>
    9. 10. <ul><li>Double-blind protocols were utilized; </li></ul><ul><ul><li>Test subjects were isolated and external clues were minimized </li></ul></ul><ul><ul><li>Test subject doses were unknown </li></ul></ul><ul><li>Subject BAC levels were tightly grouped; </li></ul><ul><ul><li>The highest test subject BAC was .110 </li></ul></ul><ul><ul><li>25% of subject BACs targeted .08 </li></ul></ul><ul><li>A seated battery of four tests were identified for field validation: </li></ul><ul><ul><li>HGN </li></ul></ul><ul><ul><li>Finger to Nose </li></ul></ul><ul><ul><li>Palm Pat </li></ul></ul><ul><ul><li>Hand Coordination </li></ul></ul>
    10. 11. <ul><li>Horizontal Gaze Nystagmus . Officers evaluate the involuntary jerking of each eye independently, as the subject follows a stimulus during three separate checks. Four or more clues indicate a BAC ≥ .08. </li></ul><ul><li>2. Finger to Nose . The FTN test requires the subject to bring the tip of the index finger to touch the tip of the nose. It is performed with eyes closed and head tilted slightly back. Nine or more clues indicate a BAC ≥ .08. </li></ul>
    11. 12. <ul><li>Palm Pat . The PP test requires the subject to place both hands, palms together in front of them. The top hand rotates 180 degrees, then alternates between the back and palm of the hand. The subject counts out loud with each pat. Two or more clues indicate a BAC ≥ .08 </li></ul><ul><li>4. Hand Coordination . The HC test requires the subject to perform a series of tasks with their hands. Three or more clues indicate a BAC ≥ .08 </li></ul>
    12. 13. <ul><li>Study site was Lake of the Ozarks, Missouri </li></ul><ul><ul><li>June 26 thru September 7, 2009 </li></ul></ul><ul><li>Missouri State Water Patrol; </li></ul><ul><ul><li>Committed 4 officers for 10 weeks </li></ul></ul><ul><ul><li>Officers received 4 days of training </li></ul></ul><ul><li>Officers made 331 stops during the study </li></ul><ul><ul><li>79% of the stops were for PC remainder were at checkpoints </li></ul></ul><ul><ul><li>58% of contacts had a BAC > .08 (n=190) </li></ul></ul>
    13. 14. <ul><li>Positive HGN, FTN, PP, and HC tests indicate a 91% probability that the BUI suspect has a BAC ≥ .08 </li></ul><ul><li>Positive HGN, FTN, and PP tests indicate a 90% probability that the BUI suspect has a BAC ≥ .08. </li></ul>
    14. 15. <ul><li>Coordinate with NHTSA, US DOT, USCG and IACP for curriculum development </li></ul><ul><li>Develop a BUI training curriculum that incorporates the validated battery into introductory and refresher lesson plans </li></ul><ul><li>Continuation of BUI instructor training seminars to enable member states to more quickly implement the standardized battery </li></ul>

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