What follows applies only to the US: I'm clueless about other countries, so don't think it's universal or anything.Ever heard "possession is nine tenths of the law?" It applies here. If a package gets flagged as suspicious they pull it from the normal mail stream and call for an officer with a dog to come and sniff it (apparently they really line it up with several other packages like in a line up, but you get the point). If the dog says there's bad things in the package, they get a warrant and open it. If they find drugs, one possibility is that they confiscate them and put a "your contraband has been seized, scumbag!" letter in its place before shipping it on its way.Another possibility is that they execute a controlled delivery. This means they get an officer, dress him up like a mail carrier, put a tracking device in the package and possibly a sensor that alerts when the package has been opened, and deliver the thing. Then they come and get you; at the mailbox when you've got it in your hands maybe, 30 seconds after you open it in your house -- don't really know the details of that part, but however they do it, they come and get you.Nobody really cares whose name is on the package. It's in your possession. It's your package. Doesn't matter if you got it at the PO box, your house, or the North Pole. You're their guy, and they're done; that's the whole point of a controlled delivery -- they can't arrest you before a prosecutor can show in court that you actually did something to be arrested for. No way to prove you ordered it, but they can easily prove you were holding it. If you're going to get out of being convicted for something like this, it'll probably be on a technicality. Which actually isn't as hard as I thought before reading up on this when I came to SR... I mean it's tricky, but it's actually possible to walk away free. Just not very common. But the cases where people got off that I found definitely had nothing to do with using a different name than their own.Using a fake or altered name does very little other than raise one more red flag for them to take note of. That's my opinion, anyway.