Lex Acilia Calpurnia was a law established during the Roman Republic in 67 BC mandating permanent exclusion from office in cases of electoral corruption.
[1] The law was passed by and named for the year's consuls Manius Acilius Glabrio and Gaius Calpurnius Piso.
This led to many people 'aspiring to regain the rank of senator by one means or another [and] a great many factions and cliques were being formed aiming at all the offices.'
Gaius Cornelius, while he was a plebeian tribune, proposed severe penalties for bribery and this was passed by the people.
The Senate realized that it was difficult to find men who would lodge accusations or who would or issue verdicts for bribery because of the severity of the penalties.