Police Search For Dangerous Sex Offender Frank Sagiba is considered dangerous. Police have captured a dangerous sex offender who was on the loose in Brisbane after allegedly escaping supervision. Frank Sagiba, 33, was found in Darra and arrested at 6.20pm on Wednesday, just hours after his escape, police said. He had been last seen in the Annerley/Woolloongabba area The man will be charged with breaching the conditions of his supervision order.