A Roy couple was arraigned Wednesday morning on charges of abuse or desecration of a human body, in connection with the death of a 5-year-old boy found buried in the couple's back yard.

Second Circuit Judge Phillip Browning set a preliminary hearing for Dec. 28 for Deborah Thomas, 28, and James Thomas, 30.The couple is being held in the Weber County Jail in lieu of $35,000 bond each on the third-degree felony charge.

They were taken into custody Monday evening after the woman's 5-year-old son was found wrapped in garbage bags buried in the back yard.

Weber County Attorney Reed Richards said Wednesday that the state medical examiner's report was inconclusive as to cause of death..

He said the autopsy revealed that the body is that of Nicholas McGuire. The county attorney said there was no obvious trauma that could have resulted in death.

The criminal charges accuse the mother and stepfather of burying the boy between Nov. 11 and Nov. 16.

During arraignment, defense attorney Martin Gravis asked the judge to reduce the bail, pointing out that people charged with third-degree felonies usually are required to post only $2,000.

Richards objected, saying murder charges could be forthcoming.

Browning said he will review the defense motion for reduction on Dec. 26.