Garry McCarthy hasn't been confirmed yet by Chicago's City Council.
But after Mayor Rahm Emanuel's inauguration Monday, McCarthy went to work as the Chicago Police Department's acting superintendent. The former Newark police chief was named May 2 as Emanuel's pick for the top cop job.
Interim Superintendent Terry Hillard resigned his post late last week after filling in for Jody Weis. Chicago Police News Affairs confirmed Monday that Beatrice Cuello, Asst. Superintendent of Administration, had operational control of the department.
Hillard had said he would leave with Mayor Richard Daley, but most thought he would wait until the new superintendent took office.
McCarthy arrived in Chicago to attend Emanuel's inauguration. After the ceremony, he met with police administration and the department's two assistant superintendents. The first chance for his council confirmation is Wednesday.
McCarthy has said he plans to quickly act on Emanuel's request for more police on city streets.