SECTION 10.  INVESTIGATIONS BY CITY COUNCIL.
   City Council or any other committee thereof, authorized by it so to do, shall have power to compel the attendance of witnesses and the production of books, papers and other evidence at any meeting of City Council, or any committee thereof;
and for that purpose may issue subpoenas or attachments. Such subpoenas or attachments shall be signed by the presiding officer of City Council or the Chairman of any committee, as the case may be, and shall be served and executed by any police or other officer of the City. If any witness shall refuse to testify to any facts within his knowledge, produce any books or papers in his possession or under his control, relating to the matter then under inquiry, City Council shall have power to commit the witness to prison for contempt. No witness shall be excused from testifying touching his knowledge of the matter under investigation, but such testimony shall not be used against him in any criminal prosecution except prosecution for perjury.
(Amended 11-8-1949; 11-7-2000)