Because you obviously are. The obvious has already been explained to you twice. Here's a third time. When the DEA presents the search warrant (or court order or whatever) to the bank, the bank will check their records and find all the safe deposit boxes which the lawyer has access to, including Kaylee's, and then open them and show them to the DEA. Then the DEA would take the cash, including Kaylee's, since it could easily be linked to Mike. I'm wondering if you don't understand how things work. The DEA would be in a lot of trouble if they just used the lawyer's keys to open safe deposit boxes without a warrant or court order -- any evidence they obtained that way would not hold up in court. Assuming they did not have a warrant when they first showed up, all they could do was confiscate what was already in plain sight (the suitcase full of money, the one open box). But the DEA would obviously get a judge to issue a warrant, then they would come back and get the bank to give them all the other safe deposit boxes.