Prenatal sex determination with a view to aborting female foetuses is ethically and morally abhorrent. Prohibiting sex determination by law will not, in itself, eradicate this practice but it does send a strong signal that society condemns such abortions. It is ridiculous to argue that because a law does not immediately achieve what it seeks to do, it is useless. One may as well say that since the law prohibiting murder does not prevent murder, why have it?