"ruling apparatus" is correct and usable in written English.
It is a group noun that typically refers to a group of people that are in power who make laws and regulations. Example: The ruling apparatus of the city passed a new ordinance raising taxes for all residents.
Most of all it infuriated China, which regards the courts as instruments of the ruling apparatus.
The move backfired and triggered a purge of native elements in the ruling apparatus.
The Communist party, a long-time ANC ally, revealed the nervousness at the heart of South Africa's ruling apparatus.
Sinecures in obscure wings of the elaborate ruling apparatus allowed ample time for other pursuits, from the frivolous to the profound.
McCue and his team will use two separate American laws to pursue the Libyan state and leading members of its ruling apparatus.
There is talk today among Korea watchers of inevitable purges at the higher echelons of the ruling apparatus, to secure the filial succession of power, and there is talk of power struggles between the military and the Party.
Hundreds of thousands of South Africans who have died of AIDS might still be alive today if Mbeki had repeatedly spoken out about safe sex and AIDS testing and treatment, and had thrown the full weight of his ruling party apparatus behind such a campaign.
The ruling political apparatus sometimes engaged in extrajudicial killings during Mr. Suharto's days, and many believe that political or military forces are continuing the tradition, either to eliminate Muslim critics or else to sow chaos and the conditions for a coup.
But opposition activists also cautioned that even though Ben Ali had fled, the ruling party apparatus remained in place, and that the opposition still lacked organization, real leadership and clear aims.
First, our peaceful movement has to survive the ruling authoritarian apparatus, and to build and empower the political organizations needed for the future democratic era.
While the Iranian people are yearning for change, there is no such appetite, capacity or potential in Tehran's ruling mullahs' apparatus.
