The Guardian reported that the documents are said to contain details of decisions taken by Facebook on data and privacy controls that resulted in the scandal involving the data analysis firm Cambridge Analytica.
The firm is alleged to have used data of more than 50 million Facebook subscribers for targeting voters in the 2016 US presidential election.
The allegations about Cambridge Analytica were made by a former employee, Christopher Wylie, and reported by London's The Observer and The New York Times in March.
He refused to do so and was promptly escorted to Parliament where it was made plain to him that he would be fined or even jailed if he did not hand over the documents.
Collins said: "We are in uncharted territory. This is an unprecedented move but it’s an unprecedented situation. We’ve failed to get answers from Facebook and we believe the documents contain information of very high public interest.”
Facebook chief executive and founder Mark Zuckerberg appeared before a US Congressional hearing after the Cambridge Analytica scandal broke. But he refused to appear before the British or Canadian Parliaments despite being requested to do so.
“We have very serious questions for Facebook. It misled us about Russian involvement on the platform. And it has not answered our questions about who knew what, when with regards to the Cambridge Analytica scandal,” Collins said.
“We have followed this court case in America and we believed these documents contained answers to some of the questions we have been seeking about the use of data, especially by external developers.”