Orange County Walk & Turn Test or Walk the (Imaginary) Line Test
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In order to perform this DUI test, it is required that it be performed on a hard, dry, level, non-slipping surface with sufficient room for the suspect to complete nine heel-to-toe steps. This test loses some validity when conducted in certain wind/weather conditions that counter these criteria. The manual calls for a straight line, which must be clearly visible on the surface, but in the DWI course, it is taught that the test can be performed parallel to the curb. Conditions must be such that the suspect would be in no danger if they were to fall.
Do you remember that in driver’s education the instructor told you never to look at the wheels of a tractor trailer while it was driving beside you? It was because we have a normal tendency to aim for where we are looking. Try walking a straight line while looking at the curb sober — you will be drawn to the curb. There are some people that this test should not be given to, because even the average sober person would have difficulty with this test. People who are more than 65 years of age, over 50 pounds overweight, or have any physical impairment that would affect their ability to balance should not be given this test. The officer is trained to take this into account when developing their probable cause to arrest. Individuals wearing heels more than two inches high should be given the opportunity to remove their shoes, as this may diminish the validity of the results. Individuals who cannot see out of one eye may also have trouble with this test because of poor depth perception and should not be given this test.
The Walk and Turn Test is an objective test based upon certain predictable errors that a person under the influence will display, as well as scoring factors that will give the officer a basis for passing and failing, other than their subjective opinion.
In order to properly administer this test, it is important to understand what type of test this is. It is commonly referred to as a Divided Attention Test because it divides the suspect’s attention between mental and physical tasks. The physical tasks include balance and coordination, while the mental tasks include comprehension of verbal instructions, processing of information, and recall of memory. While a person may be able to perform one task, they may not be able to perform the other if under the influence. While the suspect is performing this test, the officer must observe the suspect from three or four feet away and remain motionless while the suspect performs the test. Being too close or excessive motion may cause the suspect to make errors they may not have committed otherwise. This will cause some validity of the results to be lost, as even a sober person may have difficulty under these conditions.
Stages of the Walk and Turn Test
The officer must give good verbal instructions and accompany this by demonstrations when having the suspect perform this test. They must make sure that the suspect understands the instructions and are trained to receive an acknowledgement and document that affirmative response. This test is scored in relation to eight scoring factors that can be seen in two separate stages.
Instruction Stage
This will set the stage for the entire test. If the officer does not follow training and procedure during this stage, it may affect the validity of the entire test. The officer must verbally tell the suspect to assume the heel-to-toe stance and must demonstrate this. The suspect is told to place their left foot on the line and place their right foot on the line ahead of the left foot, with heel of right foot against toe of left foot. This must be demonstrated. In the absence of demonstration, the test’s validity decreases. The officer is instructed by way of training to make sure the right foot is in front of the left foot to start, in order to maintain uniformity of this test. This also becomes important later in the test, during the turning evaluation. If the suspect is instructed improperly, it may affect the suspect during this part of the test. After accomplishing the starting position, the officer must inform the suspect to remain in that position until they are told to start walking. The officer must make sure that the suspect understands this.
Which foot do you favor? Would it feel unnatural to start with the other one? There are two ways that the officer can assess a point to the suspect’s performance. If the suspect cannot keep balance while listening to the instructions, a point is scored. This item is only scored if the suspect does not maintain the heel-to-toe position throughout the instructions.
The officer is trained to be conservative in their scoring and not to score a point if the suspect sways or uses the arms to balance but maintains the starting position during this stage. It’s OK to balance using your arms, but only during this stage. A second scoring factor is known as starting too soon. This is given when the suspect starts to walk before the officer instructs them to do so. This can only be scored if the officer specifically instructed the suspect not to start until told to begin and the suspect stated they understood this instruction. Have you ever thought a person was finished speaking and started to respond before they were finished?
Walking Stage
The officer is to explain the test requirements using verbal instructions accompanied by demonstrations. The suspect is informed again that when told to start, they must take nine heel-to-toe steps, turn around, and take nine heel-to-toe steps back. The officer must demonstrate two or three heel-to-toe steps for the suspect. The officer then informs the suspect and demonstrates the same, that when the turn is performed, the suspect must keep the foot on the line, and turn by taking a series of small steps. If the officer demonstrates or instructs with the beginning wrong foot, the way that a suspect turns will be affected also. The officer then continues with informing the suspect to keep their arms at their sides while walking, watch their feet at all times, and to count their steps out loud. They must be told that they cannot stop once they start walking.
When the officer demonstrated the test, did they remember to not look at the ground? If the officer does not reiterate the question of understanding or gain an affirmative response, the test may not be scored fairly and properly, thereby invalidating the results.
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Scoring Factors of the Walk and Turn Test
There are six scoring factors that can be observed in this stage. The first one is if the suspect stops while walking to steady themselves. The officer cannot score this item if the suspect is merely walking too slow. The suspect must pause for several seconds after one step. If this occurs, the officer is trained to have the suspect begin from the point of difficulty instead of starting over, as this test loses sensitivity if repeated several times. Another scoring factor is referred to as not touching heel to toe. This can be very subjective. If the suspect leaves a half-inch or more between the heel and toe or does not walk straight along the line, they can only be assessed one point, no matter how many times this occurred.
During the instruction stage, if the suspect sways or uses their arms for balance, a point cannot be scored. A point can only be scored if, during the walking stage, the suspect raises one or both arms more than six inches from the side in order to maintain balance. If this is noticed to be the normal position of the arms, as in some bodybuilders, the officer is trained to take that into account and be conservative in their scoring. Any benefit of the doubt must be given to the suspect. The next way a suspect can be given a point is if they lose balance while turning. This item can only be scored if the suspect removes both feet from the line while turning or does not take several small steps and pivots in one movement, as in an about face movement. It is imperative that the officer has demonstrated and articulated this movement properly in order to be scored. It is important that the officer be conservative in their evaluation of this turn and not be overly critical.
Finally, the last scoring factor is if the suspect takes the incorrect number of steps. This item is scored only once, even if the incorrect number of steps are taken in either direction. The suspect was instructed to look down at their feet while performing this stage of the test and to count their steps out loud, but if they don’t adhere to these instructions, they cannot be scored a point, as these are not one of the scoring factors. There are two ways that the suspect can receive a maximum of eight points on this test: If they step off the line three or more times, or they cannot do the test. If they cannot do the test, this must be explained by the officer. A degree of reliability has been attached to this test of 68%. If the suspect receives two total points on this test, the officer is trained to use this as probable cause to believe that the suspect is under the influence and to make an arrest.
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