What is the 'horizontal gaze nystagmus' or HGN test?

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Producer:Videojug
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Duration: 12:34
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Video quality: 360p
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What is the 'horizontal gaze nystagmus' or HGN test?

Neil Shouse (Defense Attorney) gives expert video advice on: Can the police use my statements during a DUI arrest as evidence in court?; What are three nationally standardized DUI field sobriety test?; Are DUI field sobriety tests accurate and reliable? and more...

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