to determine whether the matters relied upon in exercising powers under the ISA fall within the scope of purposes specified by sections 8 and 10. 1989 amendments and Teo Soh Lung v. Minister for Home Affairs Parliament subsequently passed the Constitution of the Republic of Singapore (Amendment) Act 1989 and the Internal Security (Amendment) Act 1989. They took effect on 27 and 30 January 1989 respectively. Section 8B(1) of the amended ISA provides that the law pertaining to the judicial review of decisions made by the President or the Minister was restored to the legal position applicable in Singapore on 13 July 1971, the date when Lee Mau Seng was decided. In Teo Soh Lung v. Minister for Home Affairs (1990), the Court of Appeal held that these amendments reinstated the legal position set out in Lee Mau Seng as the applicable law governing judicial review in Singapore, thus prompting a return to the subjective test in reviewing the exercise of executive discretion under the ISA. The possible inconsistencies the subjective test had with respect to Articles 12 and 93 of the Constitution were sought to be resolved with the passing of the Constitution of the Republic of Singapore (Amendment) Act 1989. Article 149(1) was amended to shield any anti-subversion laws enacted pursuant to this provision from inconsistency with Articles 11 and 12. This was in addition to Articles 9, 13 and 14 which had already been present in Article 149(1) before the amendment. Furthermore, a new Article 149(3) provided that nothing in Article 93 would invalidate any provisions that were enacted pursuant to Article 149. Hence, the ruling in Chng Suan Tze that the subjective test was inconsistent with the Constitution was legislatively reversed, and the subjective test was restored as the valid and relevant law in Singapore. The Internal Security (Amendment) Act 1989 also introduced section 8B(2), which is an ouster clause providing that no judicial review of orders made under the ISA shall be available save in relation to questions relating to the procedural requirements of the ISA. In Teo Soh Lung, the Court of Appeal held that it was not necessary for it to decide if the subjective test in Lee Mau Seng precluded judicial review in the case. Hence, the position remains to be confirmed by the courts. In addition, the Court decided that it was unnecessary to consider the effect of section 8B(2) on