Michelle Murray from advocacy group Bully Zero Australia said she believed the 13-year-old was the youngest person in Australia to be charged with a criminal offence related to cyberbullying. The ABC understands the teenager's charges were dealt with outside court, but details of the outcome cannot be revealed. Using a carriage service to threaten violence is a Commonwealth offence that carries a maximum penalty of three years' jail. The girl from the northern Cairns suburb of Kewarra Beach, who cannot be named for legal reasons, was accused of sending multiple video messages threatening physical harm against a 14-year-old girl between February 24 and March 8. Care Leavers Australasia Network (CLAN) on 1800 008 774.Suicide Call Back Service on 1300 659 467.A 13-year-old far north Queensland girl has been charged with stalking and using a carriage service to threaten violence after allegedly using the Snapchat mobile app to cyberbully another teenager.