When customs opens a package they are supposed to notify you your packaged was opened by placing a green tape label on the package. The tape usually states the officer's name who opened "suspicious" poackage, and they have a place to state the contents then they tape the package closed and send it through. Or they seize package and send you a letter. I have had more than one package delivered with Green Tape in the past few weeks. They did not see anything dangerous in the packaging , so they sent it through with a "green tape notice" package had been opened.