The cops are slamming the battering ram against the side door of the office building when Randy’s right pinky slams the Enter key and executes that command. He is almost certainly safe from the tampering-with-evidence charge now. But he hasn’t actually tampered yet, which is the whole point of this exercise. He needs to find all the copies of the e-mail message that specifies the latitude and longitude of the wreck, and do the same multiple-erase trick on them. If the damn things were not encrypted, he could search for the critical strings of digits. As it is, he will have to search for files that were created during a certain time period, around the time that Randy was out on Glory , anchored over the wreck. Randy knows roughly what day that was, and so he sets the limits of the search to give him any files created five days either side of that, just to be safe, and limits it to only those directories used for e-mail.