The city says it plans to impose more restrictions on companies it hires or does business with, including more exhaustive searches of a company's track record.
"It is unacceptable. What happens is, and were going through the details...we only go back five years," Mayor Daley said. "There should've been another question about ever defrauding a state local or federal government. That should've been on the form, to be very frank."
Picardi had been commissioner of Streets and Sanitation but was replaced last year, following allegations that he did not oversee crews properly.