...Commission, or the officer designated by it, in obedience to a court order pursuant to subsection (c), on the ground that the testimony or evidence (documentary...otherwise) required of him may tend to incriminate him or subject him to a penalty or forfeiture ; but no individual may be prosecuted or subjected to...

...court or administrative proceeding based upon or growing out of any alleged violation of this Act on the ground that the testimony or evidence, documentary...otherwise, required of him may tend to incriminate him or subject him to penalty or forfeiture ; but no natural person shall be prosecuted or subjected...

...court or administrative proceeding based upon or growing out of any alleged violation of this Act on the ground that the testimony or evidence, documentary...otherwise, required of him may tend to incriminate him or subject him to penalty or forfeiture ; but no natural person shall be prosecuted or subjected...

...thereof or any officer designated by it, or in any cause or proceeding instituted by the Commission, on the ground that the testimony or evidence, documentary...otherwise, required of him may tend to incriminate him or subject him to a penalty or forfeiture ; but no individual shall be prosecuted or subject to...

...attending and testifying or from producing « * * records and documents before the Commission * * * on the ground that the testimony or evidence, documentary...otherwise, required of him may tend to incriminate him or subject him to a penalty or forfeiture; but no individual s-hall be prosecuted or subjected...

...attending and testifying or deposing, nor from so producing any book, paper, document, or other evidence on the ground that the testimony or evidence, documentary...otherwise, required of him may tend to incriminate him or subject him to a penalty or forfeiture ; but no natural person shall be prosecuted or subjected...

...from attending and testifying or from producing documentary evidence or in obedience to a subpena on the ground that the testimony or evidence, documentary...otherwise, required of him may tend to incriminate him or subject him to a penalty or forfeiture for or on account of any transaction, matter, or thing...

...attending and testifying or deposing, nor from so producing any book, paper, document, or other evidence on the ground that the testimony or evidence, documentary...otherwise, required of him may tend to incriminate him or subject him to a penalty or forfeiture ; but no natural person shall be prosecuted or subjected...

...attending and testifying or from producing * « * records and documents before the Commission * * * on the ground that the testimony or evidence, documentary...otherwise, required of him may tend to incriminate him or subject him to a penalty or forfeiture ; but no individual shall be prosecuted or subjected...

...ACT, 1930 or employees thereof, in any investigation instituted by the Commission under this Act, on the ground that the testimony or evidence, documentary...otherwise, required of him may tend to incriminate him or subject him to penalty or forfeiture; but no person shall be prosecuted or subject to any penalty...