By cross-referencing planets a subject was known to have visited with the planets they refueled on, one would be able to calculate where else the subject may have gone. Jedi would use this technique to track down smugglers. In 22 BBY, Anakin Skywalker and Ahsoka Tano tracked the bounty hunter Cad Bane using his fuel computer, as he had wiped all other memory from his ship's databanks.