The federal department announced Friday its office of Community Oriented Policing Services will conduct a thorough assessment of the department.
Details of the review will be revealed at a news conference on Monday.
Last month, Williams Lansdowne sought an outside audit of the department's policies, training and discipline before he resigned as police chief.
He left office the same day that Kevin Faulconer was sworn in as the city's new mayor. Earlier this month, Shelley Zimmerman was appointed the city's first female police chief.