Momence police chief Tim Swanson resigned from his position Friday. He stepped aside from both his Momence police duties and as a member of the Kankakee County sheriff's department.

Swanson was the subject of a federal grand jury hearing in June. County sheriff Tim Bukowski issued a press release Monday, announcing the resignation in a prepared statement.

Swanson joined the Kankakee County sheriff's department in July 2009 after retiring as a police chief of a western suburb.

In June, Sheriff Bukowski was called to testify as a witness in an IRS investigation of Swanson. Details of that investigation, including whether or not it remains ongoing, were never released to the department.

A Chicago newspaper reported that Swanson was once under criminal investigation and that the nonprofit helicopter program he founded was under state and federal scrutiny.

Swanson took a leave of absence as president of the Illinois Association of Chiefs of Police before it could initiate an ethics probe for his failure to inform the organization of that grand jury proceeding.

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