WALLA WALLA -- An investigation into the Walla Walla County Sheriff's Office remains open.
Now ongoing for more than two years, the probe began in October 2009 when then-Sheriff Mike Humphreys requested the Washington State Patrol look into possible financial improprieties.
Officials have said the probe focused on an individual, but requests for details have been denied on the grounds the matter is still under investigation.
Along with the WSP and the state Auditor's Office, the FBI became involved earlier this year.
Frank Harrill, FBI supervising senior agent in Spokane, confirmed today the matter remains open and said he could not comment further.
Harrill said that, as with all FBI investigations, they are working in concert with the U.S. Attorney General's Office. The decision to prosecute, or not press charges, will be made by the federal prosecutor and that decision will be made public, he said.