Pennsylvania Attorney General Josh Shapiro has created a new unit aimed at taking a fresh look at cases where defendants may have been convicted under problematic circumstances.

The Office of the Attorney General on Wednesday announced the creation of a Conviction Integrity Unit, which is set to review and reevaluate past convictions from prosecutor’s offices across the state. The new unit makes Pennsylvania at least the third state to create a statewide Conviction Integrity Unit, after attorneys general from New Jersey and Michigan launched similar units last spring.