That's a good question. By the way: a different approach to this activity about which it is worth stopping to think together and share information. Personally, I know all kinds of situations (always excluding those people who only raid for pleasure or amusement) in relation to what we might call...

Until relatively recently, both amateurs and professionals in the search and detection of underground metals had equipment that today we would describe as rudimentary because its functionality in most cases was limited to emitting a sound that alerted the walker and whose interpretation could not go beyond "here is something"....