The Nov. 30 subpoena, obtained by The Atlanta Journal-Constitution and Channel 2 Action News on Thursday, asks for “all records and/or communications” associated with Mitchell and four of his companies. It also requires the city to turn over identical documents related to Charles P. Richard Jr., and his companies C.P. Richards Construction Co. and C.P. Richards & Associates.

Federal investigators also asked for records for work performed by those companies, “including but not limited to requests for proposal, contracts (including emergency contracts), amendments to contracts, and extensions to contracts.” The subpoena also requested records related to payments from the city to the two men’s companies.

On Jan. 25, Mitchell pleaded guilty in federal court to conspiring to commit bribery in order to obtain city contracts, as well as conspiring to launder money during the time of the scheme.

He confessed to giving at least $1 million to an unnamed person under the belief that a portion of the funds would be paid to one or more city officials "who exercised influence over the contracting process," according to the criminal complaint against him.