Passport Identification Pages:
All passports, either in the front or back, have identification pages, usually facing, which contain at a minimum,
(3)country of issue,
(4)holder's permanent address at time of issuance,
(5)date of issuance,
(6)date of expiration.
Some passports have all this information on the same page as the holder's picture.
Some students should also have a Class H-1B Student visa that indicates that they are a non-US Student enrolled in degree-granting program. Be sure that these are not expired.Remember that some of the 9/11 hijackers were here on student visas!