How many total clues are included in the HGN test?

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Multiple Choice

How many total clues are included in the HGN test?

The correct choice indicates that there are six total clues included in the Horizontal Gaze Nystagmus (HGN) test, which is a commonly used field sobriety test. The HGN test assesses a subject's ability to follow an object with their eyes, looking for specific indicators of impairment. These clues are crucial because they help the officer determine the likelihood that a driver is under the influence of alcohol or drugs. Specifically, the HGN test consists of three indicators measured in each eye, which include: 1. Lack of smooth pursuit, 2. Distinct and sustained nystagmus at maximum deviation, 3. Onset of nystagmus prior to 45 degrees. With three indicators in each eye, this totals to six clues. Understanding this number is vital for law enforcement officers as they carry out assessments and document evidence during DUI investigations and create legal reports.

The correct choice indicates that there are six total clues included in the Horizontal Gaze Nystagmus (HGN) test, which is a commonly used field sobriety test. The HGN test assesses a subject's ability to follow an object with their eyes, looking for specific indicators of impairment.

These clues are crucial because they help the officer determine the likelihood that a driver is under the influence of alcohol or drugs. Specifically, the HGN test consists of three indicators measured in each eye, which include:

  1. Lack of smooth pursuit,

  2. Distinct and sustained nystagmus at maximum deviation,

  3. Onset of nystagmus prior to 45 degrees.

With three indicators in each eye, this totals to six clues. Understanding this number is vital for law enforcement officers as they carry out assessments and document evidence during DUI investigations and create legal reports.

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