The French government can go ahead with plans to trawl social media to detect tax avoidance, the constitutional court has ruled.
Customs and tax officials will be allowed to review users’ profiles, posts and pictures for evidence of undisclosed income.
The new rules are part of a broader law on tax changes passed last week.
Human rights groups and the French data protection authority had expressed concern over the moves.
In its ruling, the court acknowledged that users’ privacy and freedom of expression could be compromised, but its applied caveats to the legislation.
It said authorities would have to ensure that password-protected content was off limits and that they would only be able to use public information pertaining to the person divulging it online.