The Rev. Lonnie Logan, also a Hall County supervisor and police chaplain, had little trouble holding the stance. His counting stopped a few seconds before the actual 30 seconds had passed. The impaired drivers focus on one task and have difficulty with driving, which is more complex. If impaired drivers aren't drunk, it's possible that they're under the influence of drugs, Police Chief Kyle Hetrick said. Officers can be trained as drug recognition experts, which allows them to evaluate whether someone has used any of seven categories of drugs.
Officers consider eight indicators.
They are horizontal and vertical gaze nystagmus tests, lack of eye convergence as an object approaches the subject's nose, pupil size, reaction to light, pulse rate, blood pressure and body temperature. Participants viewed drug paraphernalia and drug samples displayed on tables. Hetrick briefly flicked a lighter three times under a small chunk of marijuana so that each participant would be able to detect the smell in the future. Post your thoughts in The Public Forum. All rights reserved.