1. Non-discrimination, together with equality before the law and equal protection of the law without any discrimination, constitutes a basic principle in the protection of human rights. The Committee wishes to draw the attention of States parties to certain features of the definition of racial discrimination in article 1, paragraph 1, of the International Convention on the Elimination of All Forms of Racial Discrimination. It is of the opinion that the words "based on" do not bear any meaning different from "on the grounds of" in preambular paragraph 7. A distinction is contrary to the Convention if it has either the purpose or the effect of impairing particular rights and freedoms This is confirmed by the obligation placed upon States parties by article 2, paragraph 1 (c), to nullify any law or practice which has the effect of creating or perpetuating racial discrimination.
2. The Committee observes that a differentiation of treatment will not constitute discrimination if the criteria for such differentiation, judged against the objectives and purposes of the Convention, are legitimate or fall within the scope of article 1, paragraph 4, of the Convention. In considering the criteria that may have been employed, the Committee will acknowledge that particular actions may have varied purposes. In seeking to determine whether an action has an effect contrary to the Convention, it will look to see whether that action has an unjustifiable disparate impact upon a group distinguished by race, colour, descent, or national or ethnic origin.
3. Article 1, paragraph 1, of the Convention also refers to the political, economic, social and cultural fields; the related rights and freedoms are set up in article 5.