Tobacco giants Philip Morris and British American Tobacco added appetite suppressants to cigarettes, according to the documents, released during litigation in the US.
It was only during litigation, he said, that he discovered that his disclosure was not "in the fashion the company wanted".
The government introduced the bill after the public airing of evidence during litigation brought on behalf of Binyam Mohamed and other former Guantánamo Bay detainees.
The government defends the change on the grounds that evidence was heard in public during litigation brought on behalf of Binyam Mohamed and other former Guantánamo Bay detainees.
A company lawyer, Arnold Kaufman, said it would be inappropriate to comment during litigation — the company is hoping the Supreme Court will hear its appeal.
Between 1949 and 1999, according to internal documents from the tobacco industry released during litigation in the US, Philip Morris and British American Tobacco added appetite suppressants to cigarettes.
The Olympic team's widows discovered what happened to their husbands during the siege over 20 years ago when a series of photographs of the aftermath were released along with German police files during litigation proceedings.
The Boston Globe persuaded a Massachusetts court to release copies of disputed evidence the Republican candidate gave during litigation between a friend and business associate, Tom Stemberg, and Mr Stemberg's ex-wife, Maureen.
An example of such a case was France's decision to stop atmospheric nuclear testing during litigation at the ICJ between it and Australia and New Zealand (1974) concerning the legality of such testing.
The Met said: "The legal arguments involved in this case are novel, complicated and important and the ramifications of departing from [the neither confirm nor deny] policy, during litigation, was likely to have far reaching implications".
