Taxpayers to fund clear-up of illegal dumps in West Yorkshire, Surrey and Kent
theguardian.com
theguardian.com
So why not attack that aspect of it? There could be some sort of strict liability offence, so that they're responsible for the costs of the cleanup without the need to prove their direct involvement.
That way the onus would be on the landowner to look after their land (using AI drones if they wish). Why should the taxpayer to be on the hook for it?