Farmer Brown gets VERY confused! Can anyone help him?

Heritage Action 'Farmer Brown gets VERY confused! Can anyone help him?' In this latest instalment of the Farmer Brown saga, the poor man has found out that in neighbouring countries landowners are being advised that artefact hunting with metal detectors is damaging the historical environment:

It’s got me in a right old muddle as it says stuff no-one told me about [...] what’s true there must be true here mustn’t it? So why haven’t we been told? [...] Either unregulated metal detecting causes serious damage to archaeological heritage or it doesn’t. As the sole decision maker on my 500 acres I’m entitled to absolutely demand that the British authorities tell me which. Who knows, they could be knowingly making me an unwitting party to serious cultural damage.

 So whose job would be informing Farmer Brown and other members of the public about such issues concerning portable antiquities from an archaeological point of view? Guess.

Probably you'd get more information on this from Bloomsbury Pete the Russell Square pigeon (national representative of the NGO, the Avian Concern for Cultural Heritage) than his reticent neighbours at number 41, who sit there drinking tea and counting their website 'hits' and speaking to TV executives when they are not fondling coins from treasure-hunted hoards.