Human rights — International Covenant on Civil and Political Rights, 1966 — Right to privacy — Data protection — Identity card scheme introduced by Mauritius — National Identity Card of 1985 — Whether collection and retention of biometric data on identity cards violating Article 17 — Whether Committee empowered to entertain actio popularis — Whether Committee empowered to hear case brought by person who had not yet been shown to have been adversely affected — United Nations Human Rights Committee