Facebook successfully requested that the case be moved from IL to San Francisco and its defense appears to be that the IL law is all about the use of biometric data such as fingerprints, retina and iris scans, voice prints, and scans of peoples' hands and faces.
Judge James Donato ruled the claims by IL residents Nimesh Patel, Adam Pezen, and Carlo Licata were "sufficiently cohesive to allow for a fair and efficient resolution on a class basis".
A federal judge in California has ruled that Facebook can be sued in a class-action lawsuit brought by users in IL who say the social network improperly used facial recognition technology on their uploaded photographs.
Facebook created a template that automatically tags people when a photo is uploaded to the site.
Facebook's misuse of their users' biometric information could potentially amount to billions of dollars in damages after a federal judge greenlighted an IL class action suit against the firm's facial recognition feature.
The ruling comes as the social network is snared in a scandal over the mishandling of 87 million users' data ahead of the 2016 U.S. presidential election.
The lawsuit claims Facebook gathered biometric information without the explicit consent of its users.
The class will consist of Facebook users in IL for whom Facebook created and stored facial recognition algorithms after June 7, 2011, Judge Donato ruled.
The ruling adds to the privacy woes that have been mounting against Facebook for weeks, since it was disclosed that the personal information of millions of users was harvested by the political consultancy Cambridge Analytica.
The lawsuit say the "tag suggestions" technology, which is employed to identify a user's friend in an uploaded photo breaches state law of IL.
Facebook issued a statement saying it continued to believe that the lawsuit has no merit.