Which function does the Commission Against Corruption serve in relation to the Chief Executive?

The Commission Against Corruption (ICAC) plays an accountable and independent function in relation to the Chief Executive by serving as a watchdog against corruption in the Hong Kong government. Its primary role is to investigate and enforce anti-corruption laws, ensuring that public officials, including the Chief Executive, adhere to ethical standards and legislation designed to prevent corrupt practices.

By operating independently from other branches of government, the ICAC maintains objectivity in its investigations, which reinforces public trust in governance and promotes a culture of integrity. This independence allows the ICAC to address corruption issues without interference, ensuring that all individuals, regardless of their position, are held accountable under the law.

In contrast, the other options do not accurately capture the ICAC's role. An advisory function would suggest a subordinate role in providing recommendations rather than actively enforcing laws. Permanent oversight implies constant monitoring in an ongoing capacity, which does not reflect the typical operational mandate of the ICAC. Judicial support may suggest assistance within the judicial system, but the ICAC primarily functions as an investigative body and does not play a direct role in judicial processes. Thus, the accountable and independent function encapsulates the essence of the ICAC's responsibilities effectively.