Mayor Rahm Emanuel on Monday said his administration would move forward with changes to the Chicago Police Department after U.S. Attorney General Jeff Sessions ordered a review of federal agreements that have bound other cities’ departments to reforms.

In a two-page memo, Sessions said agreements reached previously between the department's civil rights division and local police departments — a legacy of the Obama administration — will be subject to review by his two top deputies, throwing into question whether all of the agreements will stay in place.

A federal investigation in Chicago began after the release of the video showing the 2014 shooting of Laquan McDonald. The Department of Justice released a detailed report on Chicago’s police in the days before President Donald Trump was inaugurated, calling for reforms.

The mayor signed an agreement in principle with the Obama Justice Department in early January to seek court oversight of department reforms, the Chicago Tribune reports.