I don't know where you're from but Police can't touch any of your property unless it is directly related to the crime their kicking your door in for....
I actually don't know of a single country for which that is true.
In the US, they can touch all of your property (on the premises) while searching for things that are related.
As far as outside the US, ask Kim DotCom of Megaupload what the cops can't take.