Magnet Fishing 'illegal' in France, status in UK unclear

HAPPAH says:

Suite à l'essor de la pêche à l'aimant, le Ministère de l'Intérieur par sa Direction Générale de la Sécurité Civile et de la Gestion des Crises expose dans une circulaire nationale ce 5 juin que cette activité de pêche à l'aimant est illégale.

Obviously this is an even more 'blind' manner of removing archaeological evidence from the archaeological record than metal detecting, and nobody has been tempted to even think of creating a Code of Practice for Responsible Magnet Fishing in England and Wales. This rather begs the question whether one type of Collection Driven Exploitation of the Archaeological Record can be done "responsibly" (sic), if another cannot. Perhaps in fact the real answer is that in fact none of it can.