The deaths of 10 passengers in a tragic bus crash will not have been in vain if a new culture of wearing seatbelts and accountability for drivers is adopted. The mostly young wedding guests were killed in a bus rollover at a roundabout in Greta in the NSW Hunter Valley in 2023, with another 25 injured. Brett Button was under the influence of an opioid painkiller when he crashed the bus. Advertisement AdvertisementAdvertisement AdvertisementChief investigator Jim Modrouvanos said not wearing seatbelts on coaches was a systemic cultural problem across the community. "This next part's going to be fun," Button told passengers before accelerating into the roundabout and speeding around the turn before the crash.