COEUR d'ALENE - The Kootenai County prosecutor's office is seeking to join the cases of a Post Falls husband and his wife who are accused of criminally injuring two foster children entrusted to them.

On Dec. 5, Kootenai County Deputy Prosecutor Art Verharen filed a motion to join the cases of Jeremy M. Clark, 36, and Amber M. Clark.

They were indicted last month by a Kootenai County grand jury on two counts of felony injury to a child, conspiracy to conceal evidence of the abuse, and perjury. They were arrested and jailed, but then released on $25,000 bond.

The Clarks pleaded not guilty during their arraignment one week ago in 1st District Court. A trial date has not been set, but is likely to be in 2013.

Verharen's motion said he wants to join the cases for purposes of trial. Defense lawyers are likely to object.

Verharen's motion said the cases involve the same evidence and witnesses, "and in the interest of judicial economy it would be more efficient for the matters to be joined for jury trial."

Two-year-old Karina J. Moore died in January 2009, days after the Clarks told police Karina fell down stairs in their home. The Spokane County Medical Examiner's Office ruled the case a homicide, citing "blunt force head injuries."

Indictment documents allege abuse by the Clarks wasn't limited to Karina, however.

The couple allegedly inflicted ice baths on a boy in their care, who was 4 or 5 years old at the time, documents said. The couple also inflicted injuries to his body and head, documents said. That alleged abuse occurred between December 2007 and January 2008.

Defense lawyers for the Clarks and prosecutors have declined to comment on the case.