Human rights — Prohibition on discrimination — Right to respect for private life — European Convention on Human Rights, 1950 — Article 14 taken in conjunction with Article 8 — Racial profiling — Identity checks by police on street — Whether identity check within the ambit of Article 8 — Threshold of necessary severity for application to fall within scope of Article 8 — Positive obligation to investigate claims of racial discrimination — Whether domestic courts’ decisions sufficiently reasonable — Whether adequate legal framework to seek remedy against discrimination — European Court of Human Rights