18-309. Prosecutions for violations; evidence; immunity of witnesses.
No person shall be excused from attending and testifying or producing books and papers, in any prosecution under sections 18-305 to 18-309, for the reason that the testimony, documentary or otherwise, required of him, may tend to incriminate him or subject him to a penalty or forfeiture; but no person shall be prosecuted or subjected to any penalty or forfeiture for or on account of any transaction, matter or thing concerning which he may testify or produce evidence, documentary or otherwise, in any prosecution under the provisions of said sections; Provided, no person so testifying shall be exempt from prosecution for perjury committed in so testifying.
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