I refer to https://sso.agc.gov.sg/Act/CONS1963?ProvIds=pr1-,pr4-,pr12- (see below)

Citation

1.  This Constitution may be cited as the Constitution of the Republic of Singapore.

 

Supremacy of Constitution

4.  This Constitution is the supreme law of the Republic of Singapore and any law enacted by the Legislature after the commencement of this Constitution which is inconsistent with this Constitution shall, to the extent of the inconsistency, be void.

 

Equal protection

12.—(1)  All persons are equal before the law and entitled to the equal protection of the law.

(2)  Except as expressly authorised by this Constitution, there shall be no discrimination against citizens of Singapore on the ground only of religion, race, descent or place of birth in any law or in the appointment to any office or employment under a public authority or in the administration of any law relating to the acquisition, holding or disposition of property or the establishing or carrying on of any trade, business, profession, vocation or employment.

(3)  This Article does not invalidate or prohibit —

(a) any provision regulating personal law; or

(b) any provision or practice restricting office or employment connected with the affairs of any religion, or of an institution managed by a group professing any religion, to persons professing that religion.

 

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Article 12 can be interpreted as "No persons shall be abused by the law and all persons are entitled to the equal protection of the law", hence the application of any law that has the effect of covering up the government's wrongdoing or that is inconsistent with a person's equal protection under the law is inconsistent with Article 4 and therefore void (having no legal authority). Article 12 serves as the rule of law for Singaporeans and Singapore.

MSF (CPSSSAs) violated Article 12 by not adhering to the legal principles of family law nor the principles of Children and Young Persons Act 1993 in relation to the execution of their duty – resulting in my biological child and myself not receiving the "equal protection of the law" under Article 12.