HARRISBURG — State police Friday searched the hard drives of three state Senate computers issued to Pittsburgh-area Republican Sen. Jane Orie amid an investigation into alleged document-tampering related to her mistrial earlier this year on corruption charges.

According to the warrant obtained by The Associated Press and approved by Dauphin County Judge Richard A. Lewis in Harrisburg, the hard drives were from a laptop computer and two desktop computers — one each from Orie’s offices in suburban Pittsburgh and her office in Harrisburg — used by Orie herself. The computers were searched in Harrisburg because they’re no longer used by Orie. Rather, they have been kept in a locked room by Senate Computer Services at the state capitol at the behest of the Republican caucus, which is cooperating with the investigation.

The computers are being searched for evidence that Orie — or someone using her login “PASEN/jorie” — scanned and then deleted versions of various documents used to defend her at trial, including some documents deleted or changed after Allegheny County prosecutors subpoenaed the computer records in April.

The documents in question include one that Allegheny County Judge Jeffrey Manning later deemed to be a “cut-and-paste” forgery and prompted him to declare a mistrial in March, while a jury was deliberating corruption charges against Orie, 50, and her sister, Janine Orie, 57.

Allegheny County District Attorney Stephen Zappala Jr. would not comment on the search, but he had said last month that he wanted state police experts to examine Republican Senate computers because some files relating to the corruption case against the senator were deleted after her mistrial in March. Zappala didn’t explain then the significance of the files in question.

Michael Sarfert, Orie’s chief counsel, referred comment to her defense attorney, William Costopoulos, who did not immediately return a call and e-mail for comment.