Something everyone should KNOW. If the grade of the hill is greater than 7% the local police CANNOT use a speed detection device. Georgia Code says: § 40-14-9. Evidence obtained in certain areas inadmissible; use of device on hill "... NO SPEED DETECTION DEVICE shall be employed by county, municipal, or campus law enforcement officers on any portion of any highway which has A GRADE in excess of 7 PERCENT." ------------------------- AND they must be VISIBLE, no hiding! § 40-14-7. Visibility of vehicle from which device is operated No stationary speed detection device shall be employed by county, municipal, college, or university law enforcement officers where the vehicle from which the device is operated is obstructed from the view of approaching motorists or is otherwise not VISIBLE for a DISTANCE OF AT LEAST 500 feet.

Plus the need to POST warning signs as required by law. ------ § 40-14-6. Warning signs required --- (a) Each county, municipality, college, and university using speed detection devices SHALL erect signs on every highway which comprises a part of the state highway system at that point on the highway which intersects the corporate limits of the municipality, the county boundary, or the boundary of the college or university campus. Such signs shall be at least 24 by 30 inches in area and SHALL WARN approaching motorists that speed detection devices are being employed. No such devices shall be used within 500 feet of any such warning sign erected pursuant to this subsection.

More Georgia Code:------ § 40-14-8. When case may be made and conviction had ------- (a) No county, city, or campus officer shall be allowed to make a case based on the use of any speed detection device, UNLESS THE SPEED OF THE VEHICLE EXCEEDS the posted speed limit by MORE THAN TEN MILES PER HOUR and NO CONVICTION shall be had thereon unless such speed is more than ten miles per hour above the posted speed limit.