Constitutional Court of South Africa, National Coalition for Gay and Lesbian Equality and Others v Minister of Home Affairs and Others (1999)
“ Apart from those cases where the Constitution makes express provision to the contrary, a court decides constitutional disputes and makes, where appropriate, orders of constitutional invalidity, only on the issues presented to it and not as a matter of abstract constitutional adjudication. When a statutory provision has been partially invalidated by way of notional severance, the hypothetical possibility always exists that subsequently, because of the issues and contentions then placed before the court, the ambit of the constitutional invalidity might have to be extended. ”
