Alleging that people making stuff up is a "growing phenomenon", the Parliamentary commitee has published a call for written submissions.
Amongst the matters under investigation are "What is fake news? Where does biased but legitimate commentary share into propaganda and lies?" and "How have other governments responded to fake news?".
Committee Chair Damian Collins declared
"The growing phenomenon of fake news is a threat to democracy and undermines confidence in the media in general.
Just as major tech companies have accepted they have a social responsibility to combat piracy online and the illegal sharing of content, they also need to help address the spreading of fake news on social media platforms."
The enquiry places search engines and social media sites in the spotlight, asking for comment on what "responsibility" they have, "particularly those which are accessible to young people", and whether its is viable to use computer-generated algorithms to discern between truth and falsehood.
The deadline for written submissions is Friday 3rd March, i.e. the end of the week. And that's no lie.