HAMMOND, Ind. (AP) — An indicted northwestern Indiana mayor is maintaining that prosecutors used a confidential informant to improperly know they had more time to investigate the case.

Attorneys for Republican Portage Mayor James Snyder argue in federal court filings that prosecutors found out Snyder’s previous lawyer wouldn’t be ready for a January 2017 trial on corruption charges. Snyder’s attorneys argue that action was “tantamount to cheating” and want a judge to limit prosecutors’ ability to use information they obtained after that time.

Snyder has pleaded not guilty to federal bribery charges of accepting money in exchange for towing contracts in the Porter County city. Snyder was elected to his second term as mayor in 2015.

Federal prosecutors haven’t yet responded to Snyder’s motion. His trial is set to start Oct. 9.