🚀 go-pugleaf

KatmanDu! wrote:
> 
> On 29 Jun 1998 19:22:40 GMT, russotto@wanda.pond.com (Matthew T.
> Russotto) wrote:
> 
> >Ahh, good old HGN... wave a pen in front of their eyes and say "you
> >failed".  The cops who dreamed that up must be laughing their ass off.
> 
> You're showing your ignorance of Horizontal Gaze Nystagmus and the
> physiological reasons behind how it works. But that's OK.
> 


oh....

   HGN:     This is the "horizontal gaze nystagmus" test, a relatively
recent development in DUI investigation.
            The officer attempts to estimate the angle at which the eye
begins to jerk ("nystagmus" is
            medical jargon for eye jerking); if this occurs sooner than
45 degrees, it theoretically indicates an
            excessive blood-alcohol concentration. The smoothness of the
eye's tracking the penlight (or
            finger or pencil) is also a factor, as is the jerking when
the eye is as far to the side as it can go.
            This field sobriety test has proven to be subject to a
number of different problems, not the least of
            which is the non-medically trained officer's ability to
recognize nystagmus and estimate the
            angle of onset. Because of this, and the fact that the test
is not accepted by the medical
            community, it is not admissible as evidence in many states;
it continues, however, to be widely
            used by law enforcement. 


Note...."the fact that the test is not accepted by the medical
community, it is not admissible as evidence in many states"

yep...cops yet again wanting to be doctors......