| http://www.w3.org/ns/prov#value | - No person shall be excused from attending and testifying or from producing books, records, correspondence, documents or other evidence in obedience to the subpoena of the board, on the ground that the testimony or evidence required may tend to incriminate or subject such person to a penalty or forfeiture; but no individual shall be prosecuted or subjected to any penalty or forfeiture for or on acc
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