Man accused of child sex attack on Adelaide train identified

A young man accused of a child sex attack on a train in Adelaide's southern suburbs has been identified.

Dylan Lloyd, 21, from Aldinga Beach, is a former student at Willunga High School and has held several retail jobs throughout the city's southern suburbs in recent years.

Images of the accused rapist were obtained by 9News today after a court secrecy order on his identity was lifted. Lloyd recently appeared with long, blond hair.

The man is accused of raping a 12-year-old girl who wasn't known to him during a daylight attack on a Seaford line train earlier this month.

A court was told yesterday that Lloyd already had a child sex conviction and was considered a high risk to children and women.

9News approached Lloyd's family at their Aldinga Beach home today however they said they had no comment.

While the outcome of the case against Lloyd has yet to be determined, the allegations have sparked an immediate response from the state government.

New laws to be fast-tracked through parliament would see repeat convicted child predators jailed indefinitely or tracked for life.

"The events that we've seen unfold with the allegations of a serious child sex crime occurring on a public train are shocking," Premier Peter Malinauskas said.

Under the new laws, convicted repeat child sex offenders would only be released if two court-appointed psychiatrists could prove the offender no longer had any sexual instincts.

Even if the offender was let out, they would be electronically tracked for life.

Sonya Ryan, whose daughter Carly was groomed and murdered by a predator in 2007, has been campaigning for tougher penalties and welcomed the news today.

"We have to remember that victims receive a life sentence so it's absolutely imperative we recognise that child sex offenders are often not able to be rehabilitated," Ryan said.