The Great Law was the series of government reforms passed by the Senate and Julius Caesar after the asssination attempt on Caesar's life. It forms the basis of Roman government from here on out, except when Palpitus dissolves it during his rule.

The first part concerns how powers are delegated between the Senate and the emperor. Basically, the emperor can't dissolve the Senate, but can introduce bills and also veto them, but that requires a veto from the senator princep or head senator who is selected by the Senate in a 2/3 majority In the provinces, provincial govenors have power similar to the emperor, but is of course subordinate. Provincial senators are elected by wealthy, landowning citizens. The provincial senates also work the same way.

The second part of the Great Law was passed in 41 BC and mainly concerns what to do with conquered territories.It says that recently conquered territories are put under military rule for 1 year before control is given to a provincial government it's possible for local leaders to serve in the provencial senates or as governor, as long as they swear allegiance to Rome. If a territory revolts, it gets its rights taken away temporarily the rebel leaders have their power taken away. If they revolt again, they can not ever regain power. All soldiers are paid fair wages and slaves are to be treated 'humanly'. Then the title of emperor will pass down in a patriarchial fashion. If all an emperor's children die, or if he has none, a new candidate will be chosen from someone else in his family or govenors. And nobody can become the emperor because of violence or civil war.

The Third part of the Great Law was passed in 34 BC. It concerns the emperor's powers, and what he can and cannot do, much of which has been stated before. An interim emperor is appointed if the emperor is away from Rome or Byzantium, but he can only become emperor if the emperor dies and he receives a 3/4 vote in the Senate. The Emperor's reign is for life, unless he commits a crime. The Senate keeps a guard of more than 30,000 men to guard against an Emperor if he attempts to dissolve them. The Emperor has total control over the armed forces except the Senatorial Guard. He can declare war and make peace as he wishes. Any changes to the Great Law require the approval of the emperor, 3/4 of the Senate and 3/4 of the provincial govenors.