Biller said he has four boxes worth of documents that he claims were deliberately withheld from plaintiffs' lawyers suing Toyota in product liability lawsuits, despite court orders requiring that the automaker disclose the information.
"They were hiding evidence, concealing evidence, destroying evidence, obstructing justice," said Biller.
Toyota said in an earlier statement that "Mr. Biller continues to make inaccurate and misleading allegations about Toyota's conduct, which we strongly dispute and will continue to fight vigorously."
Biller turned over the documents to Congress as part of its investigation into Toyota's sudden acceleration controversy. However, until last week's ruling, he had been prohibited from using the documents in court.