THE former boss of a Calne waste site who ran a massive landfill tax fraud is being pursued for another £50,000 after his house sold for more than expected.

In July 2013 Malcolm Smart, who fleeced his bosses Viridor and the exchequer out of almost £1m, was given six months to hand over £211,098 or face another three months in prison.

At the time it was thought the 54-year-old's family home was only worth £395,000, but when he came to sell the Broad Town cottage 14 months ago, it went for half a million.

Now, although he has settled the initial bill, the authorities have come back to try and claw back his half of the excess profit from the house sale under the Proceeds of Crime Act.

Sue Cavender, prosecuting, told Swindon Crown Court, that they were seeking a ruling to uplift the available amount.

Smart did not attend the latest the hearing, and was not represented by a lawyer, as it was not clear if the court had written to him at his new address to inform him it was taking place.

Judge Peter Blair QC adjourned the case to Friday, January 22.

Two years ago a judge ruled the tip boss had benefitted from crime to the tune of £350,000 but only had just over £211,000 in realisable assets.

That sum included his half of the equity in the family home which transpired to be worth more than thought.

Smart had been jailed for two years after he and colleague Victor Millen, 67, of Ermin Street, Blunsdon, Swindon, admitted conspiracy to defraud.

Smart was the boss of Sand Farm Landfill, in Calne, and Millin the weighbridge operator, when they deliberately under-weighed lorries dumping their load at the site.

The pair organised the under-weighing of lorry loads of waste arriving at the tip in exchange for kick backs from customers.

Covert surveillance of loads arriving on a day in early October 2009 revealed at least three were under-weighed, costing the firm £3,500.

A few days later auditors went to the tip and noticed the takings rocketed when they were there, then falling again when they left.

Both men were spoken to by their employers Viridor, and then the police, and they admitted what they had been doing.

They either under-weighed the loads, misclassifying waste, or simply ignored some vehicles arriving at the site.

Between the start of April 2007 and October 10, 2009, they cost the company £907,255; of which about £200,000 was in landfill tax and VAT.

Although Smart said he received nothing for his deceit Millin accepted his co-defendant had given him brown envelopes stuffed with case totalling between £10,000 and £20,000.

An investigation was launched into seven directors of waste disposal companies who may have benefited from the scam, but no charges were brought against any of them.