A guy told me in MA if you ever had to use your gun in a self defense situation in your home, even if it's a clear cut castle doctrine justified shoot [perp or perps break down your door and are armed and you gun them down in your living room], cops will come arrest you but ALSO look into the efa10 records and come back to take away ALL of your guns you own to a bonded warehouse while the investigation happens. Is this how it works in other states too? Do you lose ALL of your guns if you had to defend yourself with just one of them?