The feds will take a close look at the way medical services are handled at the Snohomish County Jail, where seven prisoners have died since 2010.
Then sheriff, now Snohomish County Executive John Lovick, requested the analysis earlier this year following the most recent deaths of two prisoners, one who suffocated in 2011 due to a lung infection.
Her family has filed a $10 million wrongful death claim.
Another jail death in 2012 was triggered by severe allergies.
The Herald reports the U.S. Justice Department will pay for the review by the National Institute of Corrections, which investigated the Monroe prison following the murder of corrections officer Jayme Biendl.