Since 2010, 5 vehicles fired upon from air

Tactic has been clearly successful only one time, records show.

Texas Department of Public Safety officers have fired guns from helicopters while pursuing vehicles five times over the past two years, according to new information on the practice obtained by the American-Statesman.

According to the records, released by the agency Friday after several public information requests, the tactic was clearly successful in only one instance.

Details of the incidents, which all occurred along the Mexican border, raise additional questions about the necessity and effectiveness of a policy that experts have said is almost unheard of in other