SPOKANE, Wash. -

The Spokane County Sheriff's Office reported Wednesday afternoon that a 911 call from Chanin Starbuck was not properly forwarded to the sheriff's office for follow-up action.

The call was made moments before Chanin Starbuck was murdered on December 1.

When the 911 hang-up call came in to the 911 communications center, the call taker was required to make two attempts to call the number back. In this incident the call taker only made one attempt to call Starbuck's phone, according to sheriff's spokesman Deputy Craig Chamberlain.

The call taker was also required to forward the information on to sheriff's dispatch. In this incident that information was not forwarded.

?We learned of the mistake while making evidentiary recordings for major crimes detectives,? 911 Director Lorlee Mizell said in a written statement Wednesday. ?We addressed it with the call taker December 27th."

In the wake of the discovery of the lapse regarding the 911 call follow-up, Mizell said that all call takers and supervisors would be required to take refresher training next Monday on how to deal with hang up calls.

Earlier this week Chanin Starbuck's ex-husband Clay was arrested for her murder. His bail has been set at $1 Million and he's currently being held in custody at the Spokane County Jail.