His family says Andy Miller, 78, had suffered a heart attack and stroke several weeks before, the Daily Mail reported. Relatives had notified authorities he was unable to pay a 60-pound ($90) fine for speeding because of his health problems.
Magistrates in Blackburn, however, ordered a debt collector, or bailiff, to go to his home in Accrington and added stiff penalties. Miller died before he got to the ATM.
"Dad was put under incredible duress," Mick Miller said. "I know how nervous he had been and what a strain this would have been on him."
Justice Minister Jack Straw, who represents Blackburn in Parliament, has ordered the investigation.
2014: The Year in Music [PHOTOS]