RAPIST TO SERVE ONE MORE YEAR.

Byline: Karen Maeshiro Daily News Staff Writer

Convicted rapist Donald Bartsma, whose scheduled parole two years ago provoked an uproar in the Antelope Valley, was ordered Friday to spend an additional year behind bars for more psychiatric treatment, officials said.

The former Lancaster resident, convicted in 1988 at age 20 of kidnapping and raping a Lancaster woman at gunpoint, was ordered during a hearing at the California Medical Facility at Vacaville to undergo a year of treatment before he can be considered again for parole, officials said.

``He was sent back for psychiatric attention,'' said Christine Toombs, a parole division district administrator for the state Department of Corrections. ``Apparently, they feel he would benefit more from staying inside than coming out.''

Bartsma was sentenced in 1988 to 10 years and four months in prison. The hearing Friday was held before the state Board of Prison Terms.

Labeled by state corrections officials as a ``high-risk sex offender,'' Bartsma was scheduled to be released in 1994, but the release was revoked after he failed a psychiatric evaluation. He was ordered to spend an additional 12 months in prison at that time.

In April 1994, at an evaluation before his scheduled release, Bartsma told a prison psychiatrist that he had dreams of raping and murdering women, according to a law-enforcement bulletin leaked to news organizations.

Bartsma had formed a plan of kidnapping a woman, taking her to a house in the desert near his Lancaster home, and keeping her in a cage while he raped and tortured her, the bulletin said. Then, the bulletin said, he would kill her and bury her body to hide the evidence.

The 1988 rape occurred three months after Bartsma was released from the California Youth Authority for a sex crime involving a teen-age girl, records show.