A former teacher at a Prince William County Christian school shouldn’t be prosecuted of molesting a student until his mental state can be evaluated, a Juvenile and Domestic Relations Court judge ruled last week.

Karold Stallard, 77, of Earlysville, Va., has been charged with one count each of rape and forcible sodomy and two counts each of aggravated sexual battery and indecent liberties by a custodian. The allegations stem from Stallard’s time as a teacher at Evangel Christian School, a small, private school in Dale City.

The victim told police that Stallard began to sexually abuse her in 1982, when she was 12 and alone with Stallard in a classroom, according to court records. Police filed charges after the victim spoke to authorities in June. It’s unclear what prompted the victim to come forward.

Stallard’s attorney, Frankie C. Coyner, told Judge D. Scott Bailey last Wednesday that when he called Stallard’s home in recent weeks, “He didn’t remember who I was.”

“He didn’t remember my name,” Coyner said. “I was concerned about it.”

Stallard does not remember his interview with Prince William police about the charges against him, Coyner wrote in a motion, and is “confused or mentally impaired” and might not understand the court proceedings.

“The defendant’s mental status on or about the time the alleged incidents happened would have been much more easily ascertainable then than it is now,” the motion says. “This is a situation where the defendant either wins big or loses big. If the defendant is convicted, he will more than likely die in jail.”

Bailey ordered a mental health evaluation before proceedings can continue.

Coyner said that Stallard has not been diagnosed with any mental illness but that his family had become worried about him because of memory lapses and other troubling behavior.

In court papers, authorities have alleged that Stallard assaulted the same girl at the school three years after the classroom incident. The victim said Stallard raped her at her home in 1985, according to documents.

When speaking with detectives, Stallard “admitted to performing oral sex” on the victim in January 1985, according to the criminal complaint.

The girl’s family went to school officials in the 1990s, but the allegations were not reported to law enforcement authorities, police say. The school conducted an internal investigation and later fired Stallard.

Although failure to report such a crime to police or prosecutors is a misdemeanor, a charge cannot be pursued against the school now because the one-year statute of limitations has passed.

Bailey said he would review Stallard’s case Dec. 2.