Here is how I was taught, first they clear the wepon and show it to you, then you take it pointed at the floor from them, and you re check it again, if it's an auto, it should of had the mag removed prior to your hands getting it, if he put it back in, ask that it be removed, pointed down ward again, rack the slide and check to make sure there are no rounds left inside, the revolver should also have been empty and handed to you with the cylinder open. Ask for a cleaning cloth, as you never want to put any weapon away without wiping off the corosive elements from your hand. The way I was taught was if you didn't re check the weapon after it was handed back to you, you recieved a slap to the side of your head, by a Marine. I have seen my old uncle Mike, slap a lot of heads, God rest his sole.