On the whole I have found ac recovery groups good to work with; they are always careful to keep within the terms of their MoD license, which made things easy all round. Except for one instance that is. We located, revealed and rendered safe a German 500kg bomb in a field a mile or so from a small village. Hanging around the site was a man who claimed to be an historian and to have a WW 2 museum with many recovered items. It turned out this 'museum' was his yard some miles away. After a late evening steaming out and destroying the explosive fill we secured the site and retired for a pint. Arriving back in the morning we found our historian had made entry to the site and had the bomb body secured to a trailer and was about to drive off. Just the nerve to enter our site was enough for me, so when he refused to unload the bomb as he had the land-owner's permission to remove it I was more than annoyed. I pointed out, a bit forcefully I'm afraid, that it is not within the land owner's gift to dispose of any item recovered as they are captured enemy property and belong the Crown. Eventually. after further refusals I was about to call the police (the local cop had been a regular visitor) when, reluctantly, he unloaded. The bomb finally ended up in the village hall.