Human rights — Prohibition on discrimination — Right to respect for private life — Protection from discrimination — The European Convention on Human Rights, 1950 — Article 14 taken in conjunction with Article 8 — Racial profiling — Identity checks by police — Whether racist motives, ethnic hatred or prejudice playing role in determinations to perform identity checks by police — Lack of independent effective investigation into arguable allegations of racial profiling — Threshold for necessary severity for application to fall within scope of Article 8 — Duty to investigate allegations of racial profiling in view of serious consequences for persons affected