The establishment of the CCAC came as a response to growing concerns over corruption and maladministration in Macau during the late 1990s, as the region transitioned from Portugal to China.

Since its inception, the CCAC has played a critical role in Macau's fight against corruption and has contributed significantly to the region's reputation for good governance and adherence to the rule of law.

This investigation began after Hong Kong ICAC officers informed the Macau CCAC that their ongoing money laundering case likely implicated him.

[5] On 4 January 2011, Chan Seak Hou and Tou Wai Fong resigned from their position as deputy commissioners and were reassigned to the Public Prosecutions Office.

[6] In November 2013, the CCAC released an investigation and analysis report on complaints regarding the Granting of Public Service of Road Mass Transport.