Complaints from the public and customers of the CBB licensees are received by the CBB in the complaint forms available on the CBB's official website and such complaints which relate to potential cases of contravention of the CBB Law, rules and regulations, or SROs' business rules are also used by the CBB for the purpose of the CBB's market surveillance function.

The CBB's surveillance function also uses information disseminated through the media, included newspapers, television, newsletters, internet, research reports and other media.