Andy note the term threatening, they are also advising people to stay away. The Law is actually fairly clear on all this and they know it all too well which is why the company are trying to scare people away by employing their own security guards and salvagers. What ever you get just make sure that you file your salvage with Customs and Excise otherwise you will lose your salvage rights, provided your finds are registered there is a good chance the goods will be recognised as yours, if you had not recovered them they would have been destroyed is the argument I believe. I am not a lawyer though!!! A couple of my mates live down there and have contacted a solicitor, just to check you understand!