[1] As a tribune of the plebs, he successfully proposed in the concilium plebis a law to introduce secret ballot for all trials before the Assemblies except those related to perduellio (treason); the bill was supported by Scipio Aemilianus but opposed by the then-consul Marcus Aemilius Lepidus Porcina and his tribunician colleague Marcus Antius Briso.
[5] After his consulship, he was elected as censor for 125 BC with Gnaeus Servilius Caepio; during their censorship, they constructed the Aqua Tepula and named Publius Cornelius Lentulus as princeps senatus.
[6] He was renowned for severity as a iudex and gained fame for formulating the question "Cui bono?"
[4] In 113 BC, he was appointed special prosecutor in the case of three Vestal Virgins accused of unchastity under a law passed by one of the tribunes that year.
[7] He condemned and put to death two of them – who had been acquitted by the pontifex maximus, Lucius Caecilius Metellus Delmaticus – as well as the men involved; doing so, however, incurred for him some suspicion of political bias.