Human rights — Persons with disabilities — United Nations Convention on the Rights of Persons with Disabilities, 2006 — Article 29 — Participation in political and public life — Voting — Right to vote — Right to vote on an equal basis with others — Right to vote by secret ballot — Right to accessible voting procedures — Article 5 — Equality and non-discrimination — Article 9 — Accessibility — Australia — Whether Australia violated the rights of persons with disability for failing to provide access to electronic voting procedure — Optional Protocol to the Convention on the Rights of Persons with Disabilities, 2006 — Article 2 — Admissibility — Article 2(d) — Exhaustion of domestic remedies — Article 2(e) — Substantiation of claims