Yes, the validity of a DUI checkpoint charge can be challenged in court in Georgia. The reason for this is that the Fourth Amendment of the United States Constitution protects individuals from unreasonable searches and seizures. In order for a DUI checkpoint to be considered valid, it must meet certain criteria set forth by the Supreme Court. These criteria include factors such as the purpose of the checkpoint, the location and time of the checkpoint, and the manner in which the checkpoint is conducted. If any of these criteria are not met, it may be possible to challenge the validity of the checkpoint charge in court.