October 29, 2015

DWI Detection and Standardized Field Sobriety Testing Walk-and-Turn

Session 8 - Concepts and Principles of the Standardized Field Sobriety Tests (SFST)
DWI Detection and Standardized Field Sobriety Testing
Walk-and-Turn
Instructions Stage
• Cannot keep balance
• Starts too soon
First Nine Steps Second Walking Stage Nine Steps
• Stops walking
• Misses heel-toe
• Steps off line
• Raises arms
• Actual steps taken
Improper Turn (Describe)
Cannot Do Test (Explain)
Other:
Walk and Turn
8-96
In the boxes provided check () the number of times the clue appears during the
instructions stage.
Example: if subject loses balance twice during the instructions stage, Place two ()
check marks in the box.
Example: If the subject does not start too soon, write "0" in that box.
Record the next four clues separately for each nine steps.
If subject stops walking, record it by drawing a vertical line from the toe at the step at
which the stop occurred. Do this for each of the nine steps.
How many times during first nine steps?
How many times during second nine steps?
If subject fails to touch heel to toe, record how many times this happens?
If subject steps off the line while walking, record it by drawing a line from the appropriate
footprint at the angle in the direction in which the foot stepped. Do this for each nine
steps.
If subject uses arms to balance, give some indication of how often or how long this
happens.
Example: subject raised arms from sides three times
Place three () check marks in the box.
Record the actual number of steps taken by subject, in each direction.
For the next clue, “Improper Turn," record a description of the turn.
• Example: turned incorrectly
• Example: stumbled, to left
• Example: wrong direction
• Example: no small steps
• If the turn is correct, note: N/A
Notes:_______________________________________________
_____________________________________________________
_____________________________________________________
_____________________________________________________
_____________________________________________________
_____________________________________________________
_____________________________________________________
_____________________________________________________
_____________________________________________________
HS 178 R5/13 58 of 62
Session 8 - Concepts and Principles of the Standardized Field Sobriety Tests (SFST)
DWI Detection and Standardized Field Sobriety Testing
Walk-and-Turn
Instructions Stage
• Cannot keep balance
• Starts too soon
First Nine Steps Second Walking Stage Nine Steps
• Stops walking
• Misses heel-toe
• Steps off line
• Raises arms
• Actual steps taken
Improper Turn (Describe)
Cannot Do Test (Explain)
Other:
Walk and Turn
8-99
If the subject is unable to safely complete the test, you may stop the test early.
Document the reasons the test was stopped.
At end of the test, examine each factor and determine the total number of clues
recorded.
In the section labeled "other", record any facts, circumstances, conditions or
observations that may be relevant to this test.
Examples of additional evidence of impairment emerging during Walk and Turn test.
Examples of conditions that may interfere with subject's performance of the Walk and
Turn test:
• Wind/Weather conditions
• Subject's age
• Subject's footwear
Notes:_______________________________________________
_____________________________________________________
_____________________________________________________
_____________________________________________________
_____________________________________________________
_____________________________________________________
_____________________________________________________
_____________________________________________________
_____________________________________________________

HS 178 R5/13 59 of 62 Source: DWI Detection and
Standardized Field
Sobriety Testing
March 2013 Edition

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