Lex Licinia Mucia was a Roman law established in 95 BC by consuls Lucius Licinius Crassus and Quintus Mucius Scaevola Pontifex. Its purpose was to remove certain groups not amalgamated into the Roman Republic (the so-called Latin and Italian allies) from the citizen rolls by prosecution of all citizens who falsely claimed to have Roman citizenship.
This law caused general unrest and as a main reason resulted in the Social War of 91–88 BC.
Duncan, Bradford (October 27, 2001). "Leges Certaminabiles". Archived from the original on 2009-08-06. http://web.archive.org/web/20090806184043/http://geocities.com/bwduncan/rhr/leges.html. Retrieved 2009-08-31.