Tuesday 17 August 2010, 11:15
Dyfed-Powys Police are urging farmers to be vigilant, after an illegal rave was thwarted last weekend.
Following a tip-off, the force stepped in to prevent the rave taking place in the Newport area of Pembrokeshire. Read the full story.
Now the National Farmers Union (NFU) is targeting farmers and other landowners at the Pembrokeshire Show, warning of signs to look out for.
Supt Reg Bevan of Dyfed-Powys Police said the force's main concern with unlicensed raves was public safety.
"If the worst should happen we need to be able to get emergency services to the scene in many coastal locations this would prove difficult," he said.
Mike McNamara, chairman of NFU Cymru in Pembrokeshire, said landowners should "keep their eyes and ears open" in the run up to the bank holiday weekend.
"This could happen again in any area of rural Wales," he said.
"Each of these past events have involved a large number of people occupying land without piped water or toilet facilities and the use of very loud music equipment.
"Also, once the party is over the site has been left strewn with litter, broken glass, used needles and human waste."
But it is possible to organise dance events legally, as we blogged about earlier this year.
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