Hawaii County police have charged the mother of missing "Peter Boy" in connection with welfare fraud.

Jaylin M. Kema, 45, of Pahoa was charged today with second-degree theft, with bail set at $5,000. She is scheduled in court on Friday. She was arrested Tuesday on suspicion of theft.

Her husband, Peter J. Kema Sr., 45, was arrested Wednesday on suspicion of ownership of a prohibited firearm, ownership of prohibited ammunition, altering a serial number on a firearm, second-degree promotion of a detrimental drug and fourth-degree promotion of a harmful drug. No charges have yet been filed on Peter Kema.

Both remain in police custody, and an investigation is under way into possible drug and firearms charges as the result of items found at their Ainaloa subdivision home during the execution of a search warrant on Tuesday.

The 1997 disappearance of their son, a 6-year-old known as "Peter Boy," is one of Hawaii’s most high-profile unsolved criminal cases. State records show the boy had suffered repeated abuse. His father told authorities that he gave Peter Boy to a longtime family friend on Oahu. The child was never seen again, and the existence of the family friend couldn’t be verified. No body was ever found, and no one was ever arrested in the case.