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Mistakes in HGN Test Cause Suppression of Officer’s Testimony
If you have been arrested in Michigan for drunk driving, then the police officer may have administered an eye test called the “horizontal gaze nystagmus” or HGN test. If so, then the results of this test were probably used as part of the probable cause forming the basis of your arrest. It is essential that this HGN test be administered properly, and experience has shown that often times it is not.
This is important because even what might seem like small deviations from police training can make the HGN test inadmissible. If the test is inadmissible in your case, then it is possible that the arrest is bad, and this could result in the complete and total dismissal of your case.
For example, in People v. Borys, 2013 IL App (1st) 111629, 995 N.E.2d 499 (Ill. App. 1 Dist., 2013) the defendant was charged with aggravated DUI for driving under the influence of alcohol while her license was revoked due to a previous DUI.
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