“A statutory declaration is a statement of fact made by a declarant believed to be true.” Some higher education institutions will accept a statutory declaration concerning your previous education if you do not have certificates to prove it.
This means you set out in writing the content and nature of your qualification, e.g. by means of a Diploma Background Report. You will sign the declaration in the presence of a notary who acts as a witness to affirm that it exclusively contains true content. Your declaration is similar to taking an oath.
Higher education institutions can decide to admit you based on this declaration if you have acquired the necessary skills and/or knowledge.
Should the declaration prove to be untrue at a later date, you might be stripped of the qualification even if you successfully and legitimately completed the required assessment.