2. That on making entry at the custom house of all tea or merchandise described as tea imported into the United States, the importer or consignee shall give a bond to the collector of the port that such merchandise shall not be removed from warehouse until released by the custom house authorities, who shall examine it with reference to its purity and fitness for consumption; and that for the purpose of such examination samples of each line in every invoice shall be submitted by the importer or consignee to the examiner, with his written statement that such samples represent the true quality of each and every part of the invoice, and accord with the specification therein contained; and in case the examiner has reason to believe that such samples do not represent the true quality of the invoice, he shall make such further examination of the tea represented by the invoice, or any part thereof, as shall be necessary: Provided, That such further examination of such tea shall be made within three days after entry thereof has been made at the custom house: And provided further, That the bond above required shall also be conditioned for the payment of all custom house charges which may attach to such merchandise prior to being released or destroyed (as the case may be) under the provisions of this Act. 3. That if, after an examination, as provided in section two, the tea is found by the examiner not to come within the prohibition of this Act, a permit shall at once be granted to the importer or consignee declaring the tea free from the control of the custom authorities; but if on examination such tea, or merchandise described as tea, is found, in the opinion of the examiner, to come within the prohibitions of this Act, the importer or consignee shall be immediately notified, and the tea, or merchandise described as tea, so returned shall not be released by the custom house, unless on a re-examination called for by the importer or consignee, the return of the examiner shall be found erroneous: Provided, That should a portion of the invoice be passed by the examiner, a permit shall be granted for that portion, and the remainder held for further examination, as provided in section four.