Lex Valeria (82 BC)

[4] The law passed simply named Sulla dictator, following a precedent previously established for Quintus Fabius Maximus Verrucosus.

[10] The law set no fixed term for the dictatorship – six months, as would have been traditional, – but instead created Sulla dictator "until such time as he should firmly reestablish the city and Italy and the government in general".

He barred any ex-tribune from holding any other magisterial post and drastically limited their powers; they were permitted to bring legislation approved by the senate and traditional veto authority was preserved.

[17] With his legislative powers, he also removed the equites from the juries of the permanent tribunals (quaestiones perpetuae) and abolished the state sale of subsidised grain created by Gaius Sempronius Gracchus.

[17] He also instituted new laws to constrain the actions of provincial governors – requiring that they go and stay in the province, not leave without permission, and not start any wars without authorisation – and abolished the election of priests.