Brendon Fearon is seeking up to �100,000 from Tony Martin

Brendon Fearon, who was shot in the legs at Martin's Norfolk farmhouse, was filmed walking briskly and cycling near his home.

The footage, taken over the past week by The Sun newspaper, shows that the 33-year-old cannot be trusted and is a conman, Martin's friend and supporter Malcolm Starr said.

He says Fearon's claim for compensation against Martin should be thrown out.

Martin's mother, Hilary, said the film highlighted the "potty" nature of the legal system.

"This demonstrates that it's a crazy thing anyway. It's the system - it's potty," she said.

'Claim was preposterous'

Fearon, of Newark, Nottinghamshire, is seeking up to �100,000 compensation from Martin over the injuries he sustained.

Mr Starr, who ran a website in support of his friend, said Martin's view of Fearon and the civil case had been vindicated by the film.

"Tony has always thought that this man's claim was preposterous and this will only strengthen that view.

"Is anyone surprised anyway? How can you trust what this man says any more?

Fearon was secretly filmed by The Sun newspaper riding a bike

"How can you trust that the evidence he gave against Tony was fair?

"They should throw it out immediately."

Martin was freed from jail last month after serving two-thirds of a five-year sentence for the manslaughter of 16-year-old Fred Barras.

The farmer shot the teenager and his fellow burglar Fearon after confronting them in his home at Emneth Hungate in August 1999.

Barras died after being shot in the back and Fearon escaped with wounds to his leg and groin.

Fearon's claim for legal aid could be in jeopardy if it emerges that he has misled the Legal Services Commission, the body that administrates funds for legal actions.

"If we determine that any individual has obtained legal aid by providing false or misleading information to the Legal Services Commission, it is very likely that their legal aid certificate will be revoked," said a spokesman.

"When a legal aid certificate is revoked the individual is regarded as never having been entitled to legal aid and becomes liable to reimburse the Legal Services Commission for any legal costs paid out of the legal aid fund."