DNA technology used to catch Golden State Killer leads to NSW arrest over historic alleged sexual assaults

New South Wales Police investigators arrested a 57-year-old man in Kempsey on Thursday following a breakthrough in a cold case investigation involving a series of historical sexual assaults allegedly committed across the state between 1991 and 2002. The arrest was made possible through the application of advanced Forensic Genetic Genealogy (FGG), the same sophisticated DNA tracking technology famously used to identify the Golden State Killer in the United States. Authorities targeted the suspect after linking DNA profiles from multiple decades-old crime scenes to a broader genealogical database, allowing detectives to narrow their search to a specific family lineage and eventually the individual in question. The investigation, led by the State Crime Command’s Sex Crimes Squad under 'Operation Fairmount,' focused on a string of violent incidents that had remained unsolved for over thirty years. The alleged offenses occurred in various locations, including Sydney’s inner west and the mid-north coast, causing long-standing trauma to the victims and frustration for law enforcement who lacked a direct match in traditional criminal DNA databases. By leveraging public and private genetic data, investigators were able to build a family tree that pointed directly to the Kempsey resident, who had not previously been a primary suspect in the original inquiries. This landmark use of genetic genealogy represents a significant shift in Australian policing tactics for historical cold cases. Police officials emphasized that this technology allows them to bypass the limitations of standard forensic procedures, which require a suspect's DNA to already be on file. The accused was formally charged with multiple counts of aggravated sexual assault and break-and-enter offenses, and he appeared before the local court where bail was formally refused. Law enforcement agencies have indicated that this case serves as a warning that time and anonymity no longer provide a shield for perpetrators of historical crimes.