 Detectives from the South Brisbane District and the State Comb Operations Command are conducting an investigation in relation to a serious sexual assault that occurred in this area of Brisbane on 15 April 2011. We're seeking public insistence in relation to any suspect persons, persons who may fit our computer generated images. We request people who may have seen anything or have any knowledge as better to ring crime stoppers. This matter is a high priority investigation for the Queensland Police and we're seeking public insistence to help the suspect.