Outgoing acting U.S. Attorney for the District of Columbia Ed Martin said Tuesday the Department of Justice is reviewing several of former President Joe Biden’s final-hour pardons, vowing that his new office will scrutinize whether clemency was used “correctly” or politically.

The departing interim U.S. attorney for D.C. will become the U.S. pardon attorney and a member of a Justice Department group examining the actions of prosecutors during the Biden administration.