超越职权范围to exceed one's authority

• 朱国山还经常越职到农村向农民个体户勒索财物。

  Zhu Guoshan also often exceeded his authority, going to villages to extract money and possessions from individual farmers.

• 不准越职越权办理车管业务，不准弄虚作假。

  It is forbidden to exceed one's authority and powers in handling car management business. It is forbidden to commit fraud.