Wasco County District Attorney Matthew Ellis says his office is investigating a City of The Dalles police officer and starting a significant case review after a 2011 disciplinary letter regarding the officer was recently discovered and “questions the officer’s credibility as a truthful witness.”  Ellis, who just became District Attorney this month, says in a statement the “Notice of Discipline” was found buried in former D.A. Eric Nisley’s desk.  It was signed by former The Dalles Police Chief Jay Waterbury, and stated the officer was demoted because he had violated the police department’s policy for truthfulness.  Ellis says the notice is clear discoverable evidence for any case investigated by the officer, adding the scope of the investigation will inquire into why the letter regarding the officer was not included in the former District Attorney’s disclosure index, and review any open matter where the officer was an essential witness and file motions for dismissal.  In addition Wasco County, City Police, and the D.A.’s office are conducting a ten-year review of any and all cases involving the officer for what Ellis called “conviction integrity.”  Ellis says current The Dalles Police Chief Pat Ashmore has been supportive of the investigation, and the decisions made ten years ago do not reflect upon practices and individuals that currently work in the police department or District Attorney’s office.  Ellis states his office has been informed that the officer was placed on administrative leave by the City on Sunday.