54 STAT.] 76TH CONG. , 3D SESS.-CH. 513 -JULY 2, 1940 717 persons to testify in any and all matters within its jurisdiction. The Subpenasandoaths. president and secretary-treasurer of the Board shall have power to issue subpenas and each shall have authority to administer oaths. Upon the failure of any person to attend as a witness, when duly Fail u re of witness subpenaed, or to produce documents when duly directed by said ism ' etc.; Pn- Board, the Board shall have power to refer the said matter to any justice of the District Court of the United States for the District of Columbia, who may order the attendance of such witness, or the pro- duction of such documents, or require the said witness to testify, as the case may be, and upon the failure of the witness to attend, to testify, or to produce such documents, as the case may be, such witness may be punished for contempt of court as for failure to obey a sub- pena issued or to testify in a case pending before said court. Wit- Payment of wit- nesses who have been subpenaed by the Board, and who testify if es s . called upon, shall be paid the same fees that are paid witnesses in the District Court of the United States for the District of Columbia. "SEc. 5. (1) It shall be the duty of the secretary-treasurer of the Prosecution of law Board to enforce the provisions of all laws relating to the practice of vioatio dentistry in the District of Columbia, and all violations of said laws shall be prosecuted in the police court of the District of Columbia by the corporation counsel or one of his assistants; and the corporation counsel and his assistants shall render such other legal services as may from time to time be required by the Board of Dental Examiners. "(2) The major and superintendent of the Metropolitan Police Polie detail. Department shall detail such members of his force as may be necessary to assist the Board in the investigations and prosecutions incident to the enforcement of this Act. The Board is authorized to employ such other persons as it deems necessary to assist in the investigation and prosecutions incident to the enforcement of this Act. "SEC. 6 . The Board of Dental Examiners shall make annual reports seport to Commi to the District Commissioners, containing a statement of moneys received and disbursed and a summary of its official acts during the preceding year. "SEC. 7. Any person who desires to practice dentistry within the ceAplictio for i"i District of Columbia shall file with the secretary-treasurer of the Board a written application for a license, and furnish satisfactory proof that he is a citizen of the United States or has duly declared his intention to become a citizen of the United States, and is a graduate of a dental college approved by the Board. Such applica- Form etc. tion must be upon the form prescribed by the Board, verified by oath, and accompanied by the required fee and a recent unmounted auto- graphed photograph of the applicant. Any license issued to a person nenitizenslip re'ro- who is a citizen of a foreign country and who has duly declared his intention to become a citizen of the United States shall automatically terminate and the registration of the candidate be annulled in the event such candidate shall fail to submit to the Board satisfactory evidence within six years from the date of such license that he has become a citizen of the United States. "SEO. 8. An applicant for a license to practice dentistry shall xamination before appear before the Board at its first meeting after the filing of his application, and pass a satisfactory examination, consisting of prac- tical demonstrations and written or oral test, or both, in the following subjects: Anatomy, anesthetics, bacteriology, chemistry, histology, Sublect operative dentistry, oral surgery, orthodontia, pathology,physiology, prosthetic dentistry, materia medica, metallurgy, and therapeutics, and such other subjects as the Board may from time to time direct: Provided, That the Board may waive the theoretical examination Poiws. in the case of an applicant who furnishes proof satisfactory to said tioni ' vectaSntS Board that he is a graduate from a reputable dental college of a etc..practitionr State or Territory of the United States, approved by the Board,
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