Well, it's called "nighthawking innit?" Dr Jonathan Berry, Senior Inspector of Ancient Monuments and archaeology, is interviewed in a feature on heritage crime in Wales in BBC News online: Will Fyfe '
Night-time treasure thieves threatening a nation's heritage'
BBC News 17 August 2025
As darkness falls in one corner of Wales, police officers begin their hunt for treasure thieves - a crime that would sound like fantasy if it wasn't for the evidence.
In Gwent Police's patch, the hills are littered with ancient forts and Roman remains - and have become a regular target for those hoping to unearth rare artefacts for the black market.
Often, investigators are left with nothing but a hole in the ground - with little idea of what has been stolen or its value - though some looted treasures have been worth millions.
Nighthawking, as it is nicknamed, is now seen as a genuine threat to the nation's heritage.
PC Dan Counsell had never heard of the term nighthawking before he took a call in September 2019.
He was told locals of an ancient village near Chepstow had awoken to find more than 50 holes mysteriously dug among the gravestones of their churchyard. Residents were horrified and newspaper headlines spoke of "grave robbers."
PC Counsell understood the upset - many of his own family members, including grandparents, were buried there.
In truth the robbers weren't interested in the dead, but the artefacts that may be buried beyond them, deep into the Earth.
Before it became a Christian church about 700 years ago, there were Romans here.
[...] After PC Counsell's first case in the graveyard, he began looking out for the phenomenon.
Within two years his team had uncovered 23 suspected incidents in the force's patch - a 600 sq mile (1,550 sq km) corner of south-east Wales peppered with imposing castles, ancient hill forts and Roman ruins. Reports of people in fields at night and mysterious holes being discovered has all led PC Counsell's team to uncover cases of nighthawking.
He said one of the most worrying things was that most targeted Scheduled Monuments
Not worried about the rest then... If knowledge thieves go out in daytime and pocket stuff without telling anyone, that's "OK....." yeah? That's what cultural resource management looks like these days in Brexited Britain.
I can't help but think that if Wales has an area of 20,779 km² (8,023 sq mi), PC Counsell's patch is 1/13 of the whole. He alone has spotted 23 suspected incidents (that's ones where thieving idiots were seen, or neglected to fill their holes properly) so, extrapolating from that this might be the equivalent of a minimum 23 x 13 = 299 cases. That's a minimum of 150 a year. But the text says:
Cadw, the authority charged with protecting Wales' 4,000-plus protected ancient sites, said it saw 10 to 20 nighthawking incidents each year, but that the nature of it meant was very likely underreported.
Indeed. By how much? Once upon a time in the UK they did a half-hearted "nighthawking report" (2008). I produced arguments at the time that this was severely underestimating the problem - which the report facilely tried to make out had been "solved" by having the PAS. If there have been a minimum of 150 nighthawking episode that could have been found in each of those 17 years since the report was treated as the definitive answer... that means at least 2550 sites have been "nighthawked" under the noses of the self-satisfied arkies and their pals in PAS
But the scale of the site-looting problem is pretty massive in Wales. If there are however
just 60700 finds reported from all of Wales in the period from 1st Jan 2008 to today (an average of 3570 per year - this is a higher figure than was being shown by the PAS database at the time of the 2019 estimate - I'm not clear why). That does not tally well with the figures from even six years ago that everybody ignored then:
The Scale of the Artefact Hunting Recording Crisis in Wales, PACHI Thursday, 10 January 2019.
The estimate there is that "the total should be therefore somewhere around 40,660 objects". It seems that, however many of the evidence-trashing blighters there are (because the size of the UK metal detecting community has gone up since the 2019 estimate),
VERY FEW OF THEM ARE RESPONSIBLY REPORTING/RECORDING THEIR FINDS. The rest are just taking, who knows whether with or without the landowner's knowledge and permission? Basically the only thing we know is they were not caught.
So Plonky Plod the policeman has not the FAINTEST justification for saying the usual British crap-fluff:
Archaeologists and police point out this is a small number of people in an otherwise hugely respectful community of metal detectorists.
Except for the ones that aren't eh? Why do we need this misleading bollocks from British archaeologists? How much actual thinking and research lies behind such hopelessly glib and unnuanced statements misleading the public? [that is a rhetorical question].