A BNP activist and former parish councillor from Suffolk has been arrested by police on suspicion of a firearms offence.
Tactical firearms officers were involved in the arrest last week of 50-year-old David Lucas, of Lakenheath - just two months after he admitted possessing ammunition and gunpowder at Ipswich Crown Court.
A police spokeswoman said the arrest was made on "suspicion of possession of firearms without a licence."
He was released on police bail until September 28.
Mr Lucas was given a 12-month prison sentence suspended for 12 months in June in connection with an incident in April 2009 when police visited a static caravan at Black Dyke Farm, near Lakenheath.
Police found a plastic tub containing a small amount of gunpowder and 2,500 rounds of ammunition that Mr Lucas was not authorised to possess, Ipswich Crown Court heard.