Convicted child sex abuser Allan B. Hadfield will be allowed to include in his appeal allegations that a therapist coaxed his children to commit perjury, according to the Utah Supreme Court.

Justices decided to deny a motion by the Utah attorney general to throw out those allegations because they were "irrelevant, immaterial and scandalous," and because they were not supported by evidence in the original trial.Hadfield, 36, was convicted of seven counts of forcible sexual abuse of a child and sodomy on a child for crimes committed against his 12-year-old son and 10-year-old daughter.

Hadfield maintains he is innocent and that his children were manipulated by Barbara Snow, the therapist who treated Hadfield's children when suspicions of sexual abuse first arose.

During the original trial, Hadfield's attorney tried to offer evidence challenging Snow's treatment methods. But 4th District Judge Cullen Christensen granted a motion by the attorney general to not admit that evidence.

Deputy Utah County Attorney Wayne Watson represented Hadfield this week. Watson has been named as a possible witness for Hadfield if a new trial is granted. The attorney general's office took over the case after Watson's office declined to file charges against Hadfield.

If he testifies, Watson said he would focus on his observations of Snow when she interviewed young children believed to have been abused. Watson questioned the therapist's interviewing techniques.