PUBLIC LAW 4 1 4 - J U N E 27, 1952
[66 S T A T.
sion was made later than one hundred and twenty days of the date of issuance of the visa or other document or such examination and admission, if the vessel, aircraft, or transportation line or the master, commanding officer, owner, agent, or consignee of the vessel, aircraft, or transportation line establishes to the satisfaction of the Attorney General that the ground of exclusion could not have been ascertained by the exercise of due diligence prior to the alien's embarkation, or (4) any person claiming United States nationality or citizenship and in possession of an unexpired United States passport issued to him by competent authority, or (5) any person claiming United States nationality or citizenship and in possession of a certificate of identity issued pursuant to section 360(b) of this Act, or any other document of identity issued or verified by a consular officer which shows on its face that it is currently valid for travel to the United States and who was allowed to land in the United States after such detention. (d) Any refusal or failure to comply with the provisions of this section shall be punished in the manner specified in section 237(b) of this Act. P H Y S I C A L AND M E N T A L EXAMINATION
SEC. 234, The physical and mental examination of arriving aliens (including alien crewmen) shall be made by medical officers of the United States Public Health Service, who shall conduct all medical examinations and shall certify, for the information of the immigration officers and the special inquiry officers, any physical and mental defect or disease observed by such medical officers m any such alien. If medical officers of the United States Public Health Service are not available, civil surgeons of not less than four years' professional experience may be employed for such service upon such terms as may be prescribed by the Attorney General. Aliens (including alien crewmen) arriving at ports of the United States shall be examined by at least one such medical officer or civil surgeon under such administrative regulations as the Attorney General may prescribe, and under medical regulations prepared by the Surgeon General of the United States Public Health Service. Medical officers of the United States Public Health Service who have had special training in the diagnosis of insanity and mental defects shall be detailed for duty or employed at such ports of entry as the Attorney General may designate, and such medical officers shall be provided with suitable facilities for the detention and examination of all arriving aliens who it is suspected may be excludable under paragraphs (1), (2), (3), (4), or (5) of section 212(a), and the services of interpreters shall be provided for such examination. Any alien certified under paragraphs (1), (2), (3), (4), or (5) of section 212(a) may appeal to a board of medical officers of the United States Public Health Service, which shall be convened by the Surgeon General of the United States Public Health Service, and any such alien may introduce before such board one expert medical witness at his own cost and expense. INSPECTION BY IMMIGRATION OFFICEKS
SEC. 235. (a) The inspection, other than the physical and mental examination, of aliens (including alien crewmen) seeking admission or readmission to, or the privilege of passing through the United States shall be conducted by immigration officers, except as otherwise provided in regard to special inquiry officers. All aliens arriving at ports of the United States shall be examined by one or more immigration officers at the discretion of the Attorney General and under such regulations as he may prescribe. Immigration officers are hereby authorized and empowered to board and search any vessel, aircraft,