Alleged Child Rapist Caught After 33 Years Using Family Tree Technique, Police Say

Police in Australia say they were able to arrest an alleged child rapist this week after almost 33 years thanks to “groundbreaking” investigative techniques using DNA to build a family tree of the suspect.

Gavin Jeffery Durbridge, 54, appeared in court Tuesday on a count of deprivation of liberty and two counts of aggravated sexual assault in relation to an alleged 1991 attack on a 13-year-old boy, WAtoday reports. Durbridge was arrested a day earlier in connection with the incident—the details of which a judge described as being among the worst he’d ever heard.

The alleged assault took place on Oct. 25, 1991, when the young boy was riding his bicycle in the Carine Open Space—a park and recreation area in a suburb of Perth, Western Australia. Authorities say the boy—who has not been named—was traveling to a friend’s house when he was confronted by a man who allegedly threatened the child with a knife before restraining and assaulting him.

Read more at The Daily Beast.