The reports were expected to be tabled before a full council meeting today - six days before she is set to step down.
De Lille remained coy on whether she would retract her resignation depending on whether or not the council laid criminal charges against her. report
A decision would be made whether or not to lay criminal charges against De Lille, Mayco member for transport and urban development Brett Herron, suspended transport commissioner Melissa Whitehead and several other officials.
De Lille said she had taken issue with the credibility of Bowmans since the inception of the investigation.