The binding legal principles established are: (1) Admission as amicus curiae in the Constitutional Court is discretionary and depends on whether the amicus will provide assistance the Court would not otherwise enjoy, raising relevant new contentions useful to the Court; (2) Applications for amicus status must be made within 10 days of lodging the application for leave to appeal, failing which condonation must be sought without delay; (3) An amicus has a special duty to provide cogent, helpful submissions that assist the Court, raise new contentions, and not repeat arguments already made; (4) It is ordinarily inappropriate for an amicus to introduce new contentions based on fresh, untested evidence, particularly when this would open entirely new issues on appeal; (5) The Court will refuse amicus applications or evidentiary applications where allowing them would be disruptive, prejudicial to parties, require postponement of urgent matters, or otherwise not be in the interests of justice; (6) Under Rule 30, an admitted amicus may only canvass factual material not on the record if such facts are common cause, incontrovertible, or of an official/scientific/technical/statistical nature capable of easy verification; (7) Rule 30 has no application where the facts sought to be canvassed are genuinely disputed, as this demonstrates they are not incontrovertible or capable of easy verification; and (8) The Court will refuse applications to adduce further evidence where existing evidence is already sufficient for determination of the issues and the new evidence might open new areas of dispute not strictly germane to the core issues.