Mail cover

Mail cover is a law enforcement investigative technique in which the United States Postal Service, acting at the request of a law enforcement agency, records information from the outside of letters and parcels before they are delivered and then sends the information to the agency that requested it. The Postal Service grants mail cover surveillance requests for about 30 days and may extend them for up to 120 days.

单词	Mail cover
释义	Mail cover 原声例句 PBS访谈社会系列 You call it mail covers. Yes. 你称之为邮件封面。是的。英语百科 Mail cover Mail cover is a law enforcement investigative technique in which the United States Postal Service, acting at the request of a law enforcement agency, records information from the outside of letters and parcels before they are delivered and then sends the information to the agency that requested it. The Postal Service grants mail cover surveillance requests for about 30 days and may extend them for up to 120 days.
随便看	internal ribosome entry的意思 Internal ribosome entry site的意思 Internal Ribosome Entry Sites的意思 internal ribozyme entry site的意思 internal rigging的意思 internal rind of the bamboo的意思 Internal ring的意思 internal ring device的意思 internal ring joint的意思 internal riser的意思 internal risk management system的意思 internal road的意思 internal rolling的意思 internal root sheath的意思 internal root sheath, inner root sheath的意思 internal rossby scale的意思 Internal rotation的意思 internal rotation angle的意思 internal rotation gait的意思 internal rotation in extension的意思 internal rotation in flexion的意思 internal rotation of hip joint的意思 internal rotation of upper arm的意思 internal rotator的意思 internal rotators的意思