The half-brother of Jacqueline Kennedy Onassis is back in Jackson County Jail after allegedly violating his probation a second time for his August conviction on child pornography charges.

The half-brother of Jacqueline Kennedy Onassis is back in Jackson County Jail after allegedly violating his probation a second time for his August conviction on child pornography charges.

James Auchincloss, 64, of Ashland, was arrested Wednesday and lodged in jail, where he is being held without bail until a hearing is held to decide his fate, said Nate Gaoiran, program manager of the sex offender unit for Jackson County Community Justice.

At the hearing, which is expected to occur in the next five or six weeks, a judge could decide to send Auchincloss to prison or could release him to continue his probation, said Deputy District Attorney David Hoppe.

"This time the alleged violation could have much more serious consequences," he said. "His probation could be revoked and a judge could send him to prison."

Auchincloss waived his right to a hearing within 14 days of his arrest for the alleged probation violation in order to give his attorney, Carl Caplan, more time to develop a case against the allegation, Hoppe said. Caplan could not immediately be reached for comment Monday.

Auchincloss has not committed any new crimes, Gaoiran said. Because the case is ongoing, both Gaoiran and Hoppe said they couldn't disclose which part of probation Auchincloss allegedly violated.

"There are no new criminal charges relating to new crimes," Gaoiran said, "but I can't say whether the alleged violation was treatment related. I can only say he violated the conditions of his probation in some fashion."

Auchincloss' probation officer became aware of the alleged violation and initiated the arrest, Gaoiran said.

"We're really just interested in community safety and we want to enforce the conditions that the courts set before us," he said.

Jackson County Circuit Court Judge Mark Schiveley sentenced Auchincloss on Aug. 18 to 30 days for two felony counts of first-degree encouraging child sexual abuse.

As part of a negotiated plea agreement with Jackson County prosecutors, Auchincloss acknowledged possessing and distributing photographs of prepubescent children, images prosecutors described as lewd and lascivious in nature.

Schiveley also ordered Auchincloss to serve three years' probation, during which he was ordered to stay away from children and undergo sex-offender treatment. He must also be registered as a sex offender for the rest of his life.

This is the second time in three months that Auchincloss has ended up in jail for an alleged probation violation.

On Dec. 22, he was arrested for allegedly violating his probation by failing to comply with the rules of his sex offender treatment program, Hoppe said. Auchincloss apparently failed to report all of his behavior to his sex offender treatment group and disclosed that he had been negligent just before a scheduled polygraph test, Hoppe said.

At that time, Auchincloss accepted the sanction of spending 30 days in jail and he was released Jan. 21.

Hoppe said each probation violation usually has more serious consequences and Auchincloss won't be treated differently because of his political connections.

"I don't feel like he's getting any special treatment," Hoppe said. "I'm just going to treat James Auchincloss like I treat any other sex offender treatment violator."

Contact reporter Hannah Guzik at 541-708-1158 or hguzik@dailytidings.com.