Anti-circumvention apparatus and methods for use in sobriety testing systems
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United States of America Patent
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Sep 13, 2016
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app pub date -
Jul 1, 2013
filing date -
Mar 14, 2013
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Abstract
A method for preventing circumvention of a intoxication test includes defining a detection time envelope with a first sensor activated in response to the presence of a human test subject proximate the first sensor and sensing with a second sensor for a change from an ambient condition caused by the presence of the human test subject proximate the second sensor. The intoxication test is validated when a change from the ambient condition is detected by the second sensor during the time envelope defined by the first sensor.
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