Chapter 1 of Part 5 of the CBB Law (Articles 97 to 105) defines insiders, inside information and market information, prohibits abuse of inside information, and provides defences. Particularly, Article 99 provides the CBB with the power to issue regulations concerning the necessary procedures and controls of publishing market information, and Article 105 states that a person shall not be guilty of inside dealing if he proves that the dealing was completed in accordance with CBB's price policies.