An unauthorized immigrant who was tried twice for allegedly driving while drunk and causing a crash in San Ysidro that seriously injured a 6-year-old boy will not go to trial a third time, a judge ruled Friday.

The case against 39-year-old Constantino Banda Acosta, a Mexican citizen who has been deported from the United States more than a dozen times, was dismissed during a morning hearing in Chula Vista Superior Court.