What were the 3 severe ultimatums austria hungary issued to serbia for assassinating the next king

1. All anti-Austrian publications were to be suppressed.
2. The Black Hand must be immediately dissolved.
3. The Serbian border guards who had helped the assassins cross the border must be dismissed.
4. anti-Austrian propaganda was to be eliminated from the Serbian education system.

They made a checks and balance system to equal power within the branches. the "check" meant that one branch would watch one branch and "balance" them if they were too powerful. if you want more info on this, i would just google checks and balance system.