“Loi sécurité globale, le grand FLOUTAGE de gueule”
For context, and since the pun is difficult to translate:
- The French government is currently trying to pass a very controversial law (Loi Sécurité Globale - Global Security Law) that would forbid to film police officer and make the blurring of their faces mandatory, just as cases of Police brutality are multiplying.
- The graffiti is a pun between “Floutage de gueule” (”Mug blurring”) and “Foutage de gueule” (something like “total bullshit”).